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Denial of Service

other MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

How It Works

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions. Attackers exploit asymmetry: minimal attacker effort produces disproportionate resource consumption on the target. Application-level attacks use specially crafted inputs that trigger expensive operations—a regex engine processing malicious patterns can backtrack exponentially, or XML parsers recursively expand entities until memory exhausts. Network-level attacks flood targets with connection requests or amplify traffic through reflection, but application vulnerabilities often provide the most efficient attack surface.

The attack typically begins with reconnaissance to identify resource-intensive operations or unprotected endpoints. For algorithmic complexity attacks, adversaries craft inputs hitting worst-case performance—hash collision inputs filling hash tables with collisions, deeply nested JSON triggering recursive parsing, or pathological regex patterns like (a+)+b against strings of repeated 'a' characters. Resource exhaustion attacks open thousands of connections, upload massive files to unbounded storage, or trigger memory leaks through repeated operations. Crash-based attacks target error handling gaps: null pointer dereferences, unhandled exceptions in parsers, or assertion failures that terminate processes.

Impact

  • Service unavailability preventing legitimate users from accessing applications during attack duration
  • Revenue loss from downtime in e-commerce, SaaS platforms, or transaction processing systems
  • Cascading failures as resource exhaustion spreads to dependent services or database connections pool out
  • SLA violations triggering financial penalties and damaging customer trust
  • Security team distraction providing cover for data exfiltration or intrusion attempts running concurrently

Real-World Examples

CVE-2018-1000544 in Ruby's WEBrick server allowed ReDoS through malicious HTTP headers containing specially crafted patterns that caused the regex engine to backtrack exponentially, freezing request processing threads. A single attacker could saturate all available workers.

Cloudflare experienced a global outage in 2019 when a single WAF rule containing an unoptimized regex hit pathological cases on legitimate traffic spikes. The .*(?:.*=.*)* pattern exhibited catastrophic backtracking, consuming CPU cycles across their edge network until the rule was disabled.

CVE-2013-1664 demonstrated XML bomb vulnerabilities in Python's XML libraries. Attackers uploaded XML documents with nested entity definitions-each entity expanding to ten copies of the previous level. A 1KB upload could expand to gigabytes in memory during parsing, crashing applications instantly.

Mitigation

  • Strict input validation enforcing size limits, complexity bounds, and nesting depth restrictions before processing
  • Request rate limiting per IP address, API key, or user session with exponential backoff
  • Timeout enforcement terminating operations exceeding reasonable execution windows (typically 1-5 seconds)
  • Resource quotas limiting memory allocation, CPU time, and connection counts per request or tenant
  • Regex complexity analysis using linear-time algorithms or sanitizing patterns to eliminate backtracking
  • Circuit breakers automatically rejecting requests when error rates or latency thresholds indicate degradation
  • Load balancing and autoscaling distributing traffic across instances with automatic capacity expansion

Recent CVEs (39810)

EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

Memory corruption in Go's net library (versions <1.25.10 and 1.26.0-1.26.2) leads to application crash when parsing maliciously crafted CNAME DNS responses. Remote attackers can trigger double-free of C memory in the cgo DNS resolver's LookupCNAME function by sending excessively long CNAME records, causing immediate denial of service. EPSS score of 0.01% (1st percentile) indicates minimal observed exploitation activity despite network-accessible attack vector and no authentication requirement. Vendor patch available via Go 1.25.10 and 1.26.3.

Denial Of Service Net Go Standard Library
NVD VulDB GitHub
EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

Denial of service in the Go standard library's net package (on Windows) allows remote attackers to crash applications by supplying host or port inputs containing an embedded NUL (0) byte, which triggers a nil pointer dereference and panic in the Dial and LookupPort functions. Affected releases are net versions below 1.25.10 and 1.26.0 through 1.26.2, with publicly available exploit code but no evidence of active exploitation (EPSS 0.01%). Impact is limited to availability — a crashed process or goroutine — with no confidentiality or integrity effect.

Denial Of Service Null Pointer Dereference Microsoft +3
NVD VulDB GitHub
EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

Remote denial of service in Go's HTTP/2 stack (both golang.org/x/net/http2 and the net/http standard library) allows an unauthenticated attacker to hang the server by sending an HTTP/2 SETTINGS frame carrying SETTINGS_MAX_FRAME_SIZE = 0, which drives the transport into an unbounded loop of writing CONTINUATION frames (CWE-835). It is network-reachable with no authentication or user interaction (CVSS 7.5, availability-only impact), publicly available exploit code exists, and the SSVC framework flags it as automatable; it is not listed in CISA KEV and EPSS is negligible (0.01%). Because net/http embeds this HTTP/2 code, any Go service serving HTTP/2 on a vulnerable release is affected until upgraded.

Denial Of Service Golang Org X Net Http2 Net Http +2
NVD VulDB GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Memory and CPU exhaustion in the Netty MQTT codec (io.netty:netty-codec-mqtt) lets remote unauthenticated attackers send oversized MQTT 5 header Properties that are decoded and buffered before the message size limit is enforced. Because MqttDecoder extends ReplayingDecoder, the enormous Properties section is repeatedly re-parsed and re-buffered until parsing completes, driving an application-availability denial of service. There is no public exploit identified at time of analysis, and EPSS is very low (0.04%), but the flaw is automatable and trivial to trigger against any MQTT 5 broker or client built on Netty.

Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Denial-of-service in vm2 Node.js sandbox allows unauthenticated remote attackers to crash host processes via unbounded Buffer.alloc() calls. The vm2 library's timeout mechanism cannot interrupt synchronous C++ native calls, enabling attackers to bypass configured timeout limits and exhaust host heap memory with a single HTTP request. Version 3.11.0 patches this flaw by introducing bufferAllocLimit controls. Publicly available exploit code exists (GHSA-6785-pvv7-mvg7 includes working POC), and while EPSS data is unavailable and the vulnerability is not listed in CISA KEV, the vendor-confirmed POC demonstrates reliable exploitation against default configurations.

Denial Of Service Docker Kubernetes +1
NVD GitHub
EPSS 0% CVSS 7.1
HIGH PATCH This Week

MongoDB Server 8.2 before version 8.2.7 crashes when an authenticated user supplies an empty pipeline to $rankFusion or $scoreFusion aggregation operators on a view. The server fails to validate that the pipeline array is non-empty before accessing its first element during view resolution, resulting in a null pointer dereference that terminates the mongod process. This denial-of-service condition requires database authentication but can be triggered remotely via aggregation queries.

Denial Of Service Null Pointer Dereference Mongodb Server +1
NVD VulDB
EPSS 0% CVSS 8.6
HIGH PATCH This Week

Remote unauthenticated attackers can crash Node.js processes running vm2 <= 3.10.5 by triggering an unhandled Promise rejection that terminates the host application. The vulnerability exploits an incomplete fix for CVE-2026-22709 - while previous patches sanitized `.then()` and `.catch()` callback chains, they failed to intercept unhandled rejections originating from Promise constructor executors. Publicly available exploit code exists (GitHub advisory GHSA-hw58-p9xv-2mjh). The attack requires minimal resources (150-byte HTTP request) but achieves high impact by crashing entire server processes serving all concurrent users, with demonstrated persistent DoS despite container orchestration restart policies.

Denial Of Service Docker Kubernetes +1
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Unauthenticated remote attackers crash Gotenberg 8.x (≤ 8.31.0) by triggering a race condition between webhook goroutine context reuse and Echo framework connection pooling. When webhook middleware spawns an async goroutine holding an `echo.Context` reference, the synchronous handler returns immediately, recycling the context to Echo's `sync.Pool`. Concurrent requests reset the pooled context, causing unchecked type assertions in the still-running webhook goroutine to panic outside any `recover()` scope, terminating the process with exit code 2. Twenty-four webhook requests plus sixty concurrent GET requests demonstrate reliable two-second crash windows. No patch was available at initial disclosure; upstream commit fixes the panic in version 8.32.0. CVSS 7.5 (AV:N/AC:L/PR:N/UI:N) reflects trivial unauthenticated network exploitation producing complete service disruption.

Denial Of Service Python Docker +4
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Decompression bomb protection bypass in Netty's HttpContentDecompressor and DelegatingDecompressorFrameListener allows remote unauthenticated attackers to trigger out-of-memory denial of service by switching Content-Encoding from gzip to brotli, zstd, or snappy. The configured maxAllocation parameter correctly limits gzip/deflate decompression but is silently ignored for these alternative encodings, enabling attackers to decompress gigabytes of data from kilobyte-sized payloads. Affects both HTTP/1.1 (netty-codec-http) and HTTP/2 (netty-codec-http2) implementations. CVSS 7.5 (High) with network vector, low complexity, and no authentication required. Vendor-released patches available: versions 4.1.133.Final and 4.2.13.Final. No active exploitation confirmed at time of analysis, but publicly disclosed proof-of-concept demonstrates trivial header-based bypass requiring only changing 'Content-Encoding: gzip' to 'Content-Encoding: br'.

Denial Of Service Python Java
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Memory exhaustion in Netty's Lz4FrameDecoder allows remote unauthenticated attackers to cause denial of service by sending minimal malicious data that triggers disproportionate server-side memory allocation. A 22-byte crafted LZ4 frame forces the decoder to allocate up to 32MB of heap memory per request, enabling resource exhaustion attacks against Java applications using Netty's compression codec. Publicly available exploit code exists (PoC published in GitHub advisory GHSA-mj4r-2hfc-f8p6). CVSS 7.5 indicates network-exploitable high-availability impact with no authentication or complexity barriers, though real-world risk depends on whether LZ4 decompression is exposed to untrusted network inputs.

Denial Of Service Java Red Hat +1
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Memory exhaustion in Netty HTTP/3 codec allows remote attackers to cause server crash or denial of service through malformed QPACK headers. The vulnerability affects io.netty:netty-codec-http3 versions up to 4.2.12.Final and enables unauthenticated attackers to force gigabyte-scale memory allocations with minimal wire data-a crafted HEADERS frame of just 10 bytes can trigger ~1 GiB allocation. Publicly available exploit code exists (PoC provided in GitHub advisory GHSA-2c5c-chwr-9hqw). CVSS 7.5 (High) reflects network-accessible attack requiring no privileges or user interaction.

Denial Of Service Java Red Hat
NVD GitHub VulDB
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

Improper enforcement of RFC 1035 domain-name constraints in Netty's DNS codec (io.netty.handler.codec.dns.DnsCodecUtil) lets attacker-influenced names bypass validation in both directions: the decoder accepts oversized labels (>63 bytes) and total names (>255 bytes) from malicious DNS responses, growing an unbounded StringBuilder, while the encoder passes through null bytes and over-length labels and silently truncates on empty labels. This affects any Java application using netty-codec-dns or netty-resolver-dns (e.g. DnsNameResolver) up to 4.2.12.Final and 4.1.132.Final, enabling DNS cache poisoning, domain allowlist/validation bypass, and memory-exhaustion denial of service. Publicly available exploit code exists (vendor-supplied encoder and decoder PoCs verified on 4.2.12.Final), but EPSS is very low (0.04%, 13th percentile) and it is not in CISA KEV.

Denial Of Service Java
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Denial of service in Netty's native epoll transport (netty-transport-native-epoll 4.2.0.Final through 4.2.12.Final) lets an unauthenticated remote peer leave server-side channels permanently stuck by sending a FIN to half-close a connection and then a RST. Because the EPOLLERR/EPOLLHUP condition is never processed once input is marked shut down, channelInactive never fires, so connections leak and, in code paths where clearEpollIn0() is skipped, the event-loop thread spins at 100% CPU and starves every other multiplexed connection. There is no public exploit identified at time of analysis, and the EPSS score is very low (0.04%, 11th percentile), consistent with a resource-exhaustion bug rather than a code-execution one.

Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Denial of service in Nerdbank.MessagePack (NuGet, versions < 1.1.62) allows a remote unauthenticated attacker to crash any .NET process that deserializes untrusted MessagePack into a type graph containing a DateTime. A tiny crafted payload declares an oversized timestamp extension length, which is propagated unvalidated into a stackalloc on the streaming reader's slow path, producing an uncatchable StackOverflowException that terminates the process. No public exploit identified at time of analysis and EPSS is very low (0.04%), but the attack is trivial and a vendor patch (1.1.62) is available.

Denial Of Service Deserialization
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

CPU exhaustion in python-multipart allows remote unauthenticated attackers to cause denial of service through crafted multipart/form-data requests with unbounded header blocks. Applications using Starlette, FastAPI, or other ASGI frameworks that parse attacker-controlled file uploads are vulnerable to worker thread starvation and event-loop blocking. Vendor-released patch available in version 0.0.27, which enforces default limits on both header count and individual header size during multipart parsing.

Denial Of Service Python
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Granian ASGI server suffers remote denial of service when unauthenticated attackers send malformed WebSocket upgrade requests containing non-ASCII bytes in the Sec-WebSocket-Protocol header, causing worker process termination. Each crafted request kills one worker process; sequential requests across all workers achieve complete service outage. The vulnerability exists in Granian's pre-application WebSocket scope construction (src/asgi/utils.rs), making application-layer defenses ineffective. Publicly available exploit code exists with complete proof-of-concept demonstrating the attack. Vendor-released patch 2.7.4 addresses the issue for affected versions 1.2.0 through 2.7.3.

Denial Of Service Python
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Infinite loop denial-of-service in Snappier .NET library allows remote attackers to exhaust server resources with as few as 15 bytes of malformed Snappy-compressed data. The vulnerability affects the SnappyStream decompressor component when processing framed-format streams, causing an uncatchable busy-loop that cannot be interrupted via try/catch blocks. Publicly available exploit code exists (CVE researcher provided a working proof-of-concept). CVSS 7.5 with network vector and no authentication required indicates remotely exploitable attack surface in web applications processing compressed uploads or API payloads. No active exploitation confirmed at time of analysis, but the trivial exploit complexity (15-byte payload) makes this attractive for resource exhaustion attacks against .NET services using Snappier for decompression.

Denial Of Service
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Unauthenticated remote denial-of-service in Micronaut Framework 4.3.0–4.10.21 allows heap exhaustion via crafted Accept-Language headers. The TimeConverterRegistrar component caches DateTimeFormatter instances in an unbounded ConcurrentHashMap keyed by @Format pattern plus locale. Attackers exploit BCP 47 private-use extensions (e.g., en-x-0001, en-x-0002) to generate millions of unique cache entries, consuming 500+ MB per 100,000 requests until JVM crashes with OutOfMemoryError. Publicly available exploit code exists (PoC provided in advisory). EPSS score not yet available for this 2026 CVE. Affects all Micronaut HTTP servers using documented @Format temporal parameter binding—a first-class framework feature requiring no special configuration. Vendor-released patch: 4.10.22 fixes both this and sibling vulnerability GHSA-3rfq-4wpf-qqw3 in ResourceBundleMessageSource. Structurally identical to previously patched GHSA-2hcp-gjrf-7fhc but in different component.

Denial Of Service Java
NVD GitHub VulDB
EPSS 0% CVSS 7.8
HIGH POC PATCH This Week

Path traversal in GitPython versions ≤3.1.47 enables arbitrary file write and deletion outside repository boundaries when applications pass attacker-controlled reference paths to reference creation, rename, or delete operations. A fully-functional proof-of-concept demonstrates successful exploitation by crafting reference names with '../../../' sequences to escape the `.git` directory and manipulate files with the process owner's permissions. Applications exposing GitPython reference APIs to user input-particularly Git automation services, CI/CD pipelines, and multi-tenant developer platforms-are at immediate risk, as no authentication is required at the library boundary. Fixed in version 3.1.48 per GitHub advisory GHSA-7545-fcxq-7j24.

Denial Of Service Python Path Traversal +2
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote unauthenticated attackers can trigger memory exhaustion and process-level denial of service in Node.js applications using basic-ftp by sending unterminated FTP multiline control responses during initial connection. The vulnerability occurs in the client library when connecting to malicious or compromised FTP servers, causing unbounded buffer growth in _partialResponse with repeated CPU-intensive reparsing. This affects automated FTP integrations for scheduled imports, customer-provided endpoints, backup jobs, and CI/CD pipelines. Publicly available exploit code exists per GitHub security advisory GHSA-rpmf-866q-6p89. CVSS 7.5 HIGH with network attack vector, low complexity, and no authentication required confirms practical remote exploitation risk.

Denial Of Service Node.js Red Hat +1
NVD GitHub
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution within Chrome's sandbox allows arbitrary code execution via a malicious HTML page exploiting a use-after-free vulnerability in WebRTC. Affects Chrome versions prior to 148.0.7778.96. Despite high CVSS 8.8 scoring and RCE capability, exploitation requires user interaction (visiting a crafted page) and is confined to Chrome's sandbox, limiting system-level impact. Vendor patch released in Chrome 148.0.7778.96. No evidence of active exploitation (not in CISA KEV) or public POC at time of analysis, though Chromium security team rated this as Low severity internally, suggesting limited real-world exploitability despite the technical impact.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome on macOS versions prior to 148.0.7778.96 enables attackers to execute arbitrary code within the browser's sandbox through a malicious HTML page exploiting a use-after-free vulnerability in the Audio subsystem. The vulnerability requires user interaction (visiting a crafted webpage) but no authentication, with CVSS 8.8 rating reflecting high impact across confidentiality, integrity, and availability. Google has released patches in Chrome 148.0.7778.96; no active exploitation (KEV) or public POC has been identified at time of analysis, though the technical details are publicly accessible via Chromium issue tracker 495779613.

RCE Denial Of Service Chrome +5
NVD
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome prior to 148.0.7778.96 on Linux, Mac, and ChromeOS allows remote attackers who have already compromised the renderer process to break out of Chrome's sandbox via a crafted HTML page exploiting a use-after-free vulnerability in the printing subsystem. Despite the 8.3 CVSS score, Chromium rates this Low severity because exploitation requires a two-stage attack chain (initial renderer compromise followed by sandbox escape). Vendor patch released as Chrome 148.0.7778.96. No evidence of active exploitation or public POC identified at time of analysis.

Denial Of Service Chrome Google +4
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome prior to 148.0.7778.96 through a use-after-free vulnerability in the UI component. Attackers who have already compromised the renderer process can escape sandbox restrictions and execute arbitrary code by delivering a specially crafted HTML page requiring user interaction. Google has released patch version 148.0.7778.96. No active exploitation confirmed in CISA KEV at time of analysis, though the vulnerability requires prior renderer compromise which increases attack complexity beyond the CVSS AC:L rating suggests.

RCE Denial Of Service Chrome +5
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome's WebRTC component (versions prior to 148.0.7778.96) allows attackers to execute arbitrary code within the browser's sandbox by exploiting a use-after-free memory corruption vulnerability via a malicious HTML page. While sandboxed, successful exploitation achieves high confidentiality, integrity, and availability impact within the renderer process. EPSS data unavailable; not listed in CISA KEV, indicating no confirmed widespread exploitation at time of analysis. Vendor patch released as Chrome 148.0.7778.96.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome's GPU component affects versions prior to 148.0.7778.96. An attacker who has already compromised the renderer process can escalate privileges to break out of Chrome's sandbox by exploiting a use-after-free memory corruption vulnerability via a specially crafted HTML page. This requires high attack complexity and user interaction (visiting a malicious page). No active exploitation confirmed at time of analysis, and vendor-released patch (version 148.0.7778.96) is available. EPSS data not provided, but the combination of network vector, changed scope (S:C in CVSS), and sandbox escape capability makes this a priority update for Chrome deployments despite Chromium's 'Medium' internal severity rating.

Denial Of Service Chrome Google +4
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome's ReadingMode component (versions prior to 148.0.7778.96) allows attackers who have already compromised the renderer process to escape sandbox restrictions and execute arbitrary code on the underlying system. The vulnerability requires user interaction to visit a malicious webpage but exploitation complexity is low once renderer compromise is achieved. EPSS data not available; no CISA KEV listing identified at time of analysis, indicating no confirmed widespread exploitation. Vendor-released patch available in Chrome 148.0.7778.96.

RCE Denial Of Service Chrome +5
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome's WebAudio implementation (versions before 148.0.7778.96) allows attackers to execute arbitrary code within the browser sandbox by exploiting a use-after-free vulnerability through a malicious HTML page. The vulnerability requires user interaction (visiting a crafted page) but no authentication. Google has released Chrome 148.0.7778.96 to address this issue. EPSS data not available; no KEV listing or public POC identified at time of analysis, suggesting limited real-world exploitation observed despite the high CVSS score.

RCE Denial Of Service Chrome +5
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote code execution in Google Chrome versions prior to 148.0.7778.96 via malicious extension exploitation of use-after-free in Views component. Successful exploitation requires convincing a user to install a crafted Chrome extension, after which the attacker can execute arbitrary code with Chrome's privileges. Google has released Chrome 148.0.7778.96 to address this vulnerability. No evidence of active exploitation (not listed in CISA KEV) or public proof-of-concept code identified at time of analysis. CVSS 7.5 severity driven by high attack complexity and required user interaction, which moderates real-world exploitation risk despite potential for full system compromise.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome's DevTools component allows attackers who have already compromised the renderer process to break out of the browser sandbox and execute code on the underlying system. Affects all Chrome versions prior to 148.0.7778.96. Google has released version 148.0.7778.96 to patch this vulnerability. The attack requires high complexity and user interaction (visiting a malicious page), but successful exploitation enables complete system compromise with changed scope (S:C in CVSS vector), escalating from renderer-level access to full system access. No evidence of active exploitation (not in CISA KEV) or public proof-of-concept identified at time of analysis.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome versions prior to 148.0.7778.96 allows attackers to execute arbitrary code within the browser's sandbox by exploiting a use-after-free vulnerability in the Blink rendering engine through a specially crafted HTML page. CVSS score of 8.8 reflects high impact across confidentiality, integrity, and availability, though exploitation requires user interaction (visiting a malicious webpage). EPSS data not available. Not listed in CISA KEV at time of analysis. Vendor-released patch available in Chrome 148.0.7778.96.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome versions prior to 148.0.7778.96 allows remote attackers who have already compromised the renderer process to break out of Chrome's security sandbox through a use-after-free vulnerability in the TopChrome component. Attack requires user interaction with a malicious HTML page and has high attack complexity. EPSS data not available; no active exploitation confirmed at time of analysis. Vendor-released patch available in Chrome 148.0.7778.96.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome prior to 148.0.7778.96 allows remote attackers who have already compromised the renderer process to break out of Chrome's security sandbox via a use-after-free vulnerability in the Navigation component. This requires user interaction with a malicious HTML page and successful renderer compromise as a prerequisite, making it a two-stage attack requiring high attack complexity. Vendor-released patch available in Chrome 148.0.7778.96. No public exploit or active exploitation (CISA KEV) identified at time of analysis. CVSS 8.3 (High) reflects the severe post-compromise impact (sandbox escape enabling system-level access), but real-world risk depends heavily on successful initial renderer compromise.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Use-after-free in Chrome's V8 JavaScript engine enables remote code execution inside the sandbox when users install a malicious extension. Google Chrome versions prior to 148.0.7778.96 are vulnerable to arbitrary code execution through specially crafted Chrome Extensions exploiting memory corruption in V8. CVSS rates this 8.8 (High) with network attack vector requiring user interaction. Vendor-released patch available in Chrome 148.0.7778.96 per Google's May 2026 stable channel update. EPSS and KEV data not provided; exploitation requires social engineering to install malicious extension, limiting automated exploitation scenarios.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome before 148.0.7778.96 allows unauthenticated attackers to execute arbitrary code within the Chrome sandbox by exploiting a use-after-free vulnerability in the CSS rendering engine through a malicious webpage. Requires victim interaction (visiting attacker-controlled page) but needs no authentication. Vendor-released patch available as Chrome 148.0.7778.96. EPSS score not provided; no CISA KEV listing indicates no confirmed widespread exploitation at time of analysis, though browser vulnerabilities are high-value targets.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote code execution in Google Chrome's MediaRecording component (versions prior to 148.0.7778.96) allows attackers to execute arbitrary code when victims perform specific UI interactions with a malicious webpage. The use-after-free vulnerability in memory management has been patched by Google in version 148.0.7778.96. EPSS data not available; no CISA KEV listing identified, suggesting no confirmed widespread exploitation at time of analysis, though publicly available exploit code exists per Chromium bug tracker disclosure.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome for Windows below version 148.0.7778.96 allows unauthenticated attackers to execute arbitrary code within Chrome's sandbox via specially crafted HTML pages exploiting a use-after-free vulnerability in the WebRTC implementation. CVSS score of 8.8 reflects high impact across confidentiality, integrity, and availability. EPSS data not provided, but Google's 'High' severity classification and immediate patch release indicate active concern. No CISA KEV listing or public POC identified at time of analysis, though the vulnerability is already patched.

RCE Denial Of Service Chrome +6
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome prior to version 148.0.7778.96 allows attackers to execute arbitrary code within the browser's sandbox by exploiting a use-after-free vulnerability in the Presentation API through a specially crafted HTML page. User interaction is required (visiting a malicious webpage). EPSS data not available for this recent CVE. No public exploit confirmed at time of analysis, though the vulnerability has been patched by Google in the stable channel release.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use-after-free memory corruption in Chrome Remote Desktop (Chromoting) on Windows enables local privilege escalation to SYSTEM via malicious file interaction. Attackers with local access can gain OS-level administrative control by inducing users to open specially crafted files processed by the Chromoting component. Patch available in Chrome 148.0.7778.96. No evidence of active exploitation (not in CISA KEV), but the local attack vector with low complexity and high impact warrants immediate patching for Windows Chrome deployments, especially in multi-user environments where privilege boundaries are critical.

Privilege Escalation Denial Of Service Chrome +6
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome via ServiceWorker use-after-free allows remote attackers to break out of Chrome's security sandbox through a specially crafted HTML page. Affects all Chrome versions prior to 148.0.7778.96. EPSS data not yet available for this recent CVE. Google has released a patch in version 148.0.7778.96. While rated high severity by Chromium project, the attack complexity is high (AC:H) and requires user interaction (UI:R), limiting widespread exploitation risk despite the critical scope change (S:C) indicating sandbox escape capability.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome prior to 148.0.7778.96 enables attackers to execute arbitrary code by exploiting a use-after-free vulnerability in the Passwords component through a malicious HTML page. User interaction (visiting the crafted page) is required. CVSS score of 8.8 reflects network-based attack requiring no authentication but requiring user interaction, with high impact to confidentiality, integrity, and availability. Vendor patch available in Chrome 148.0.7778.96. No public exploitation confirmed at time of analysis.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome versions prior to 148.0.7778.96 allows remote attackers who have already compromised the renderer process to break out of Chrome's security sandbox through a use-after-free vulnerability in the Skia graphics library. Exploitation requires user interaction with a malicious HTML page and successful prior renderer compromise, representing a second-stage attack rather than initial access. No active exploitation confirmed (not in CISA KEV), though the vulnerability's sandbox escape capability makes it valuable for targeted attack chains.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome versions prior to 148.0.7778.96 enables remote attackers who have already compromised the renderer process to break out of Chrome's security sandbox through a use-after-free vulnerability in the Aura UI framework. The attack requires user interaction with a malicious webpage and presents high attack complexity, but successfully chains renderer compromise with sandbox escape to achieve full system impact. No active exploitation confirmed (not in CISA KEV), though this vulnerability class is frequently targeted given Chrome's wide deployment and the high value of sandbox escapes.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome's GPU component prior to version 148.0.7778.96 allows remote attackers who have already compromised the renderer process to break out of Chrome's security sandbox via a use-after-free memory corruption vulnerability triggered by a malicious web page. This represents a critical second-stage attack where initial renderer compromise is chained with GPU exploitation to achieve full system access. Vendor-released patch available in Chrome 148.0.7778.96. No evidence of active exploitation (not in CISA KEV) or public proof-of-concept at time of analysis.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome on Windows allows attackers who have already compromised the renderer process to break out of Chrome's security sandbox via a use-after-free flaw in the Fullscreen API. Affects Chrome versions prior to 148.0.7778.96 on Windows platforms. Google has released a patch (version 148.0.7778.96) and rated this High severity. No evidence of active exploitation (not in CISA KEV) or public proof-of-concept code at time of analysis, though the vulnerability requires initial renderer compromise making it a second-stage exploitation vector.

Denial Of Service Chrome Google +5
NVD VulDB
EPSS 0% CVSS 8.3
HIGH PATCH This Week

Sandbox escape in Google Chrome for Windows versions prior to 148.0.7778.96 allows remote attackers who have already compromised the renderer process to break out of the Chrome sandbox via a use-after-free vulnerability in the Aura UI framework. The attack requires user interaction with a specially crafted HTML page and has high attack complexity (AC:H), but grants complete control over confidentiality, integrity, and availability with changed scope (S:C). No active exploitation confirmed in CISA KEV at time of analysis. EPSS data not provided, but the vulnerability targets a browser component with over 3 billion users globally.

Denial Of Service Chrome Google +5
NVD VulDB
EPSS 0% CVSS 9.6
CRITICAL PATCH Act Now

Use-after-free in the Views component of Google Chrome versions prior to 148.0.7778.96 enables site isolation bypass after renderer compromise. A remote attacker who has already compromised the renderer process can escape sandbox protections via a malicious HTML page, potentially accessing cross-origin data or executing code outside the renderer sandbox. Patch released by Google in version 148.0.7778.96. EPSS score of 0.02% (3rd percentile) indicates very low probability of exploitation in the wild currently, with no evidence of active exploitation or public proof-of-concept at time of analysis.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 9.6
CRITICAL PATCH Act Now

Sandbox escape in Google Chrome versions prior to 148.0.7778.96 allows remote attackers to break out of the browser's security sandbox through a use-after-free vulnerability in the Fullscreen API component. Attackers can deliver exploitation via a specially crafted HTML page requiring only user visit to the page (no additional interaction). With CVSS 9.6 (Critical) and scope change indicating containment breach, this represents a serious risk to browser security model integrity. No evidence of active exploitation (not in CISA KEV) and EPSS data not available at time of analysis.

Denial Of Service Chrome Google +4
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution within Chrome's sandbox affects all versions prior to 148.0.7778.96 via crafted HTML pages exploiting a use-after-free vulnerability in DOM handling. Remote unauthenticated attackers can achieve arbitrary code execution with high integrity and confidentiality impact by convincing users to visit a malicious webpage. Vendor patch released (Chrome 148.0.7778.96). No confirmed active exploitation (not in CISA KEV), but the low attack complexity (AC:L) and publicly disclosed bug tracker entry (Chromium issue 496292089) increase exploitation risk. EPSS data not provided but RCE in widely-deployed browser warrants immediate patching despite sandbox containment limiting full system compromise.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome versions prior to 148.0.7778.96 allows attackers to execute arbitrary code within the browser's sandbox through a use-after-free vulnerability in SVG rendering. User interaction (visiting a malicious webpage) is required, but no authentication is needed. Vendor-released patch available in Chrome 148.0.7778.96. No public exploit identified at time of analysis, though CVSS score of 8.8 reflects high impact if successfully exploited.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome for macOS (versions prior to 148.0.7778.96) allows attackers to execute arbitrary code within the browser's sandbox by exploiting a use-after-free vulnerability in the ANGLE graphics library through a malicious HTML page. The vulnerability requires user interaction (visiting a crafted webpage) but can be exploited remotely without authentication. Google has released Chrome 148.0.7778.96 to address this high-severity memory corruption issue, which affects the confidentiality, integrity, and availability of sandboxed browser processes.

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Remote code execution in Google Chrome's Chromoting component (remote desktop feature) on Linux allows unauthenticated attackers to execute arbitrary code through specially crafted network packets when a user interacts with a malicious remote desktop session. Fixed in Chrome 148.0.7778.96. Vendor rates severity as Critical. No public exploit code identified at time of analysis, but the use-after-free class (CWE-416) is well-understood and exploitable. CVSS 8.8 reflects network attack vector with low complexity requiring only user interaction, enabling full system compromise (high confidentiality, integrity, and availability impact).

RCE Denial Of Service Chrome +5
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote code execution in Google Chrome for iOS prior to version 148.0.7778.96 through use-after-free memory corruption in the mobile UI handler. Exploitation requires convincing a user to perform specific UI gestures while viewing a malicious HTML page. Google confirms Critical severity and has released a patched version. EPSS data unavailable; not currently listed in CISA KEV. Attack complexity is rated High due to the required user interaction pattern, limiting opportunistic exploitation but enabling targeted attacks via social engineering.

RCE Denial Of Service Chrome +6
NVD VulDB
HIGH PATCH This Week

Malformed reference links in Mistune 3.2.0 trigger algorithmic complexity attacks in the parse_link_title() function, causing 100% CPU consumption and permanent process hangs. The vulnerability affects Python applications processing untrusted Markdown content, enabling remote denial-of-service through minimal-size payloads (the provided POC is under 200 bytes). A publicly available proof-of-concept demonstrates consistent exploitation discovered via coverage-guided fuzzing. Vendor patch 3.2.1 addresses the issue by implementing parsing limits and defensive checks.

Denial Of Service Python Suse
NVD GitHub
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Regular Expression Denial of Service in mistune's link title parser enables attackers to freeze Python applications with 58-byte Markdown payloads. The LINK_TITLE_RE regex in mistune 3.0.0a1 through 3.2.0 exhibits catastrophic backtracking (O(2^N) time complexity) when parsing link titles with repeated escaped punctuation patterns, blocking a parser thread for approximately 6 seconds on modern hardware with exponential growth per additional byte pair. Publicly available exploit code exists (demonstrated in the GitHub advisory with working PoC), enabling trivial weaponization against web applications, documentation systems, Jupyter tooling, and API endpoints that process user-supplied Markdown. CVSS 8.7 (CVSS:4.0/AV:N/AC:L/PR:N/UI:N/VA:H) reflects the network-accessible, zero-prerequisite nature of the attack, though the High availability impact assumes single-threaded parsing or resource-constrained environments.

Denial Of Service Python Apple
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote denial of service in React Server Components (react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack) versions 19.0.0-19.0.5, 19.1.0-19.1.6, and 19.2.0-19.2.5 allows unauthenticated remote attackers to crash servers, trigger out-of-memory exceptions, or exhaust CPU resources by sending specially crafted HTTP requests to server function endpoints. The CVSS 7.5 score reflects network-accessible, low-complexity exploitation requiring no privileges or user interaction, with high availability impact. No public exploit code or active exploitation confirmed at time of analysis, though EPSS data unavailable and vulnerability disclosed by Meta directly.

Denial Of Service React Server Dom Turbopack React Server Dom Parcel +1
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH POC This Week

Denial of service in Cisco Crosswork Network Controller (CNC) and Cisco Network Services Orchestrator (NSO) allows remote unauthenticated attackers to exhaust connection resources by flooding the system with connection requests, forcing a manual reboot to restore service. CVSS 7.5 (High) with network vector and no authentication required. No public exploit code identified at time of analysis, and EPSS data not available. The vulnerability stems from inadequate rate-limiting on incoming connections (CWE-400), affecting critical network orchestration infrastructure used for automation and service provisioning.

Denial Of Service Cisco
NVD GitHub VulDB
EPSS 0% CVSS 7.7
HIGH This Week

Cisco SG350 and SG350X managed switches can be remotely crashed via crafted SNMP requests, forcing unexpected device reloads. Authenticated attackers with valid SNMP credentials (read-only or read-write community strings for SNMPv1/v2c, or user credentials for SNMPv3) can trigger a heap-based buffer overflow in SNMP response parsing. Cisco confirmed this vulnerability affects all three SNMP versions (v1, v2c, v3) and published advisory cisco-sa-sg350-snmp-dos-GEFZr2Tj. EPSS and KEV status not provided in available data; exploitation requires network access with low complexity but does require valid SNMP authentication.

Buffer Overflow Denial Of Service Heap Overflow +1
NVD
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Type confusion in Qt SVG renderer allows remote denial of service through malicious SVG images. Attackers can craft SVG files with self-referencing marker elements that trigger out-of-bounds heap reads and infinite recursion, crashing applications that parse the SVG. Affects Qt 6.7.0-6.8.7 and 6.9.0-6.11.0. Vendor patch available via code review platform. CVSS 8.7 reflects network delivery vector with no authentication required, though actual exploitation requires victim to open or render the crafted SVG file.

Denial Of Service Memory Corruption Qt +1
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local denial of service in the Linux kernel MANA driver (Microsoft Azure Network Adapter) arises from a double destroy_workqueue on the PCI service-rescan path. When mana_serv_reset() suspends the device and mana_gd_cleanup() tears down gc->service_wq, a subsequent failed mana_gd_resume() (-ETIMEDOUT/-EPROTO) triggers pci_stop_and_remove_bus_device(), invoking mana_gd_remove()/mana_gd_cleanup() a second time on the already-freed workqueue, causing a use-after-free/double-free crash. This affects Azure guests running the MANA driver; there is no public exploit identified at time of analysis and EPSS is very low (0.02%).

Denial Of Service Linux
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

A race condition in the Linux kernel's chips-media wave5 video decoder driver allows local authenticated users to trigger a NULL pointer dereference during concurrent instance creation/destruction, potentially leading to high confidentiality, integrity, and availability impact. The vulnerability affects kernel versions from commit 9707a6254a8a onwards until patched in 6.18.16, 6.19.6, and 7.0. Fixed via interrupt handler refactoring with proper locking. EPSS score of 0.02% (4th percentile) indicates very low observed exploitation probability, and no public exploit code or CISA KEV listing exists, suggesting limited real-world exploitation despite the high CVSS 7.8 score.

Denial Of Service Linux Null Pointer Dereference +2
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Double-free memory corruption in Linux kernel's Xen 9P filesystem driver (9p/xen) allows adjacent network attackers to crash the kernel or potentially execute arbitrary code. The xenwatch thread racing with back-end state changes triggers use-after-free during teardown of xen_9pfs_front_free(), causing general protection faults. Vendor patches available for mainline 7.0 and stable branches 6.19.6, 6.18.16, and 6.12.75. EPSS score of 0.02% (5th percentile) suggests low exploitation probability in the wild; no public exploit or CISA KEV listing at time of analysis.

Denial Of Service Linux Red Hat +2
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use-after-free and reference count underflow in the Linux kernel's amdgpu DRM driver allows local authenticated users with low privileges to cause kernel panic, denial of service, and potentially execute arbitrary code with kernel privileges. The vulnerability affects amdgpu_gem_va_ioctl handling of GPU timeline fences where stale or freed fences are used due to premature fence selection and improper reference management. Patch available in kernel versions 6.18.16, 6.19.6, and 7.0. EPSS score of 0.02% indicates low observed exploitation probability, and no public exploit or active exploitation has been identified.

Denial Of Service Linux Use After Free +3
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Null pointer dereference in Linux kernel Realtek rtw89 WiFi PCI driver allows adjacent network attackers to trigger kernel crashes via malformed TX release reports with abnormal sequence numbers. The vulnerability causes out-of-bounds array access in wd_ring->pages when hardware reports invalid sequence numbers during wireless transmission operations. Vendor-released patches are available for kernel versions 6.18.16, 6.19.6, and 7.0. EPSS score of 0.02% (4th percentile) indicates minimal observed exploitation activity, though the CVSS vector (AV:A/AC:H/PR:N/UI:N) shows adjacent network access with high attack complexity enables complete system compromise without authentication.

Denial Of Service Linux Null Pointer Dereference +2
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Resource management flaws in the Linux kernel MediaTek MDP driver allow local authenticated attackers with low privileges to trigger memory corruption via improper error handling during device probe initialization, potentially escalating to kernel code execution. Multiple stable kernel branches (5.10.x through 7.0) are affected, with vendor patches released across all maintained versions. No active exploitation confirmed (EPSS 0.02%, not in CISA KEV), though the local attack vector and low complexity suggest straightforward exploitation once local access is achieved.

Denial Of Service Linux Null Pointer Dereference +2
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Improper validation in the rtw89 PCI WiFi driver allows adjacent network attackers to trigger kernel crashes via malformed TX release reports on RTL8922DE wireless chipsets. The vulnerability stems from insufficient content validation of release reports before use, which can cause kernel panics when malformed SKB (socket buffer) release reports are processed. EPSS score of 0.02% and absence from CISA KEV suggest limited real-world exploitation, though the 8.8 CVSS reflects the potential for complete system compromise via adjacent network access without authentication. Patches available across multiple stable kernel branches (6.18.16, 6.19.6, 7.0).

Denial Of Service Linux Red Hat +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Null pointer dereference in Linux kernel UDP-Lite implementation crashes systems when udp_lib_init_sock() fails during socket initialization. Affects mainline 6.18+ through 6.19.5 and stable 7.0. Remote unauthenticated attackers can trigger denial of service by sending crafted UDP-Lite packets that exploit unhandled initialization errors in udplite_sk_init() and udplitev6_sk_init(), causing NULL pointer access in __udp_enqueue_schedule_skb(). Vendor patches available for 6.18.16, 6.19.6, and 7.0 stable trees. EPSS score of 0.02% indicates low observed exploitation probability, and no active exploitation is confirmed at time of analysis.

Denial Of Service Linux Google +1
NVD VulDB
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

A kernel crash occurs in Linux btrfs filesystem tracepoint code when OverlayFS is layered on top of btrfs. The btrfs_sync_file() event handler incorrectly dereferences dentry->d_sb, which resolves to the overlay superblock instead of the underlying btrfs superblock, causing a kernel panic during fsid assignment. This affects Linux kernel versions from initial git commit (1da177e4c3f4) through multiple stable branches until patched releases 6.6.136, 6.12.83, 6.18.24, 6.19.14, and 7.0. EPSS score of 0.02% (5th percentile) indicates very low observed exploitation probability. Vendor patches are available across all affected stable kernel branches.

Denial Of Service Linux
NVD VulDB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Out-of-bounds array indexing in Linux kernel's wl1251 wireless driver allows adjacent network attackers to achieve high-impact memory corruption without authentication. The wl1251_tx_packet_cb() function uses untrusted firmware completion IDs directly to index a fixed 16-entry tx_frames array without bounds validation, enabling attackers on the same wireless network segment to read/write arbitrary kernel memory. Vendor patches available across multiple stable kernel branches (6.6.136, 6.12.83, 6.18.24, 6.19.14, 7.0). EPSS score of 0.02% (5th percentile) indicates low observed exploitation probability, and no active exploitation or public POC identified. However, CVSS 8.8 reflects genuine risk for systems with wl1251 hardware on untrusted networks.

Denial Of Service Linux Null Pointer Dereference
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

NULL pointer dereferences in Linux kernel's IPv6 IOAM (In-situ Operations, Administration, and Maintenance) trace data handling cause denial of service when network packets trigger the vulnerable code path. Affects Linux kernel 5.15 through 6.19.14 and mainline branches. Despite CVSS 7.5 High severity with network vector and no authentication, EPSS exploitation probability is very low (0.02%, 4th percentile), and no active exploitation or public POC is identified at time of analysis. Vendor patches available via stable kernel commits.

Denial Of Service Linux Null Pointer Dereference +2
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Null pointer dereference in Linux kernel ICMP probe handling crashes systems when IPv6 module is configured but not loaded. The icmp_build_probe() function fails to validate ERR_PTR(-EAFNOSUPPORT) from ipv6_stub->ipv6_dev_find(), passing the error pointer directly to dev_hold() and triggering immediate kernel panic. EPSS probability is low (0.02%, 5th percentile) and no active exploitation confirmed, but CVSS 7.5 High severity reflects trivial remote unauthenticated denial-of-service against vulnerable kernel configurations. Patches available across stable branches (6.6.136, 6.12.83, 6.18.24, 6.19.14, 7.0) with upstream commit identifiers confirmed.

Denial Of Service Linux Null Pointer Dereference
NVD VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation in Linux kernel netfilter nfnetlink_queue allows authenticated users with low privileges to execute arbitrary code with high integrity and availability impact via race condition in shared hash table. The vulnerability stems from a use-after-free condition when multiple queues share a global hash table, enabling parallel CPU operations to access freed nf_queue_entry structures. EPSS score is low (0.02%, 5th percentile) indicating minimal observed exploitation activity. Vendor patches available across multiple stable kernel branches (6.12.83, 6.18.24, 6.19.14) with upstream commits confirmed.

Denial Of Service Linux Use After Free +1
NVD VulDB
EPSS 0% CVSS 7.5
HIGH POC This Week

Remote denial-of-service in ZTE home routers (H8102E, H168N, H167A, and 15 other models) allows unauthenticated network attackers to crash the web management interface via oversized HTTP POST request with application/x-www-form-urlencoded content, requiring physical device reboot to restore service. ZTE claims devices patched since March 2021, but operator firmware timelines vary. EPSS data not available; no active exploitation confirmed (not in CISA KEV). Publicly available exploit details exist via GitHub gist.

Denial Of Service N A Zte
NVD GitHub VulDB Exploit-DB
EPSS 0% CVSS 8.8
HIGH PATCH This Week

Unauthenticated path traversal in Grav CMS FormFlash component allows remote attackers to create arbitrary directories and write configuration files (index.yaml) with controlled content. Confirmed actively exploited (CISA KEV). The vulnerability affects all Grav v1.7.x installations with form-enabled pages (default in standard deployments). Attack complexity is low-requires only manipulating the __form-flash-id POST parameter with traversal sequences. Vendor-released patch available in v2.0.0-beta.2 (commit d904efc33) applies strict alphanumeric sanitization to session identifiers. EPSS exploitation probability data not available, but GitHub advisory confirms zero-day status prior to patch, with public proof-of-concept demonstrating directory creation in user/config/ paths leading to configuration injection and potential DoS via inode exhaustion.

PHP Denial Of Service Path Traversal
NVD GitHub
EPSS 0% CVSS 8.1
HIGH PATCH This Week

Grav CMS Admin Panel allows authenticated users with only user-creation permissions to overwrite administrator accounts by submitting the admin's username when creating a new user. The flawed create-or-update logic replaces the existing super-admin account metadata with attacker-supplied low-privilege data, locking the legitimate administrator out and causing complete loss of management control. Vendor-released patch: fixed in 2.0.0-beta.2 (commit d904efc33). Publicly available exploit code exists (video PoC published by Grav maintainers). EPSS data not provided, but the low attack complexity and confirmed PoC make exploitation straightforward for any low-privileged user with create-user rights.

PHP Privilege Escalation Denial Of Service
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Denial of service attacks against PHP applications using phpseclib can be triggered by providing maliciously crafted ASN.1 encoded files containing oversized Object Identifiers. The vulnerability bypasses a previous CVE-2024-27355 mitigation, allowing OID amplification attacks that exhaust server resources when processing untrusted X.509 certificates, PKCS8 keys, or other ASN.1 structures. Vendor-released patches are available across all affected major versions (1.x, 2.x, 3.x). CVSS 7.5 indicates network-exploitable, unauthenticated denial of service with no public exploit identified at time of analysis.

Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Remote denial of service in Twisted's DNS name decompression (twisted.names module) allows unauthenticated attackers to freeze the single-threaded reactor by sending a crafted TCP DNS packet with deeply chained compression pointers and thousands of questions. Publicly available exploit code exists. Despite high CVSS score (7.5), real-world impact is limited to applications using the twisted.names DNS server-not the broader Twisted framework. Vendor-released patch available in version 26.4.0rc2.

Denial Of Service Python Red Hat +1
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

GoBGP v4.4.0 crashes with SIGSEGV panic when an unauthenticated remote BGP peer sends malformed UPDATE messages with inconsistent attribute lengths. The nil pointer dereference in AdjRib.Update (adj.go:127) causes complete process termination and loss of BGP service. Publicly available exploit code exists (POC in GitHub advisory GHSA-p3w2-64xm-833j). Vendor-released patch available in v4.5.0. CVSS 7.5 (AV:N/AC:L/PR:N/UI:N) reflects the trivial remote exploitation of critical network infrastructure with no mitigating factors.

Denial Of Service Null Pointer Dereference Red Hat +1
NVD GitHub
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Local denial of service in Sandboxie 1.17.2 and earlier allows unprivileged processes inside Standard Sandbox configurations to crash the Windows kernel (BSOD) by sending malformed IOCTL requests to the SandboxieDriverApi kernel driver. Fixed in version 1.17.3 released by Sandboxie-Plus. Security Hardened Sandbox configurations are not affected. No active exploitation confirmed (not in CISA KEV), but the vulnerability is trivially exploitable by any process within an affected sandbox, enabling local attackers or malicious sandboxed applications to force immediate system-wide service disruption.

Denial Of Service Microsoft Sandboxie +1
NVD GitHub VulDB
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Worker process crashes occur in ModSecurity (libmodsecurity3) when processing query string parameters containing single characters through the t:hexDecode transformation function. Remote unauthenticated attackers can trigger repeated segmentation faults to disrupt web application firewall protection, though service automatically recovers once the attack ceases. All libmodsecurity3 versions before 3.0.15 are affected across Apache, IIS, and Nginx deployments. OWASP confirmed the vulnerability via GitHub security advisory GHSA-qrjc-3jpc-3h2g and released patch version 3.0.15 addressing this buffer overflow (CWE-125: Out-of-bounds Read).

Buffer Overflow Denial Of Service Apache +4
NVD GitHub VulDB
EPSS 0% CVSS 8.7
HIGH POC PATCH This Week

Unauthenticated remote denial-of-service in Phoenix Framework 1.7.0-1.7.21 and 1.8.0-1.8.5 allows attackers to crash Elixir BEAM nodes by sending multi-megabyte HTTP requests filled with newlines to the long-poll transport endpoint. A 1 MB payload of newline characters triggers allocation of approximately one million empty list elements, exhausting scheduler and memory resources. Session token required to trigger the vulnerability is obtainable via unauthenticated GET request, making exploitation trivial. Vendor-released patches (1.7.22, 1.8.6) enforce client-side batching limits. CVSS 8.7 (high availability impact) confirmed; no public exploit or CISA KEV listing identified at time of analysis.

Denial Of Service Suse Phoenix +1
NVD GitHub
EPSS 0% CVSS 7.3
HIGH PATCH This Week

Uncontrolled resource consumption in Apache HTTP Server's mod_md module allows remote unauthenticated attackers to exhaust server resources via malformed OCSP response data, affecting versions 2.4.30 through 2.4.66. The vulnerability enables attackers to achieve confidentiality, integrity, and availability impacts with low complexity exploitation over the network. No active exploitation confirmed (not in CISA KEV), but the network-accessible attack surface and lack of authentication requirement make this a credible threat requiring prompt patching to version 2.4.67.

Denial Of Service Apache Red Hat +4
NVD VulDB
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Remote attackers can crash OpenClaw 2026.4.9 by sending oversized WebSocket frames to the voice-call realtime webhook path, causing complete service unavailability. The vulnerability requires no authentication and affects deployments that expose the WebSocket endpoint externally. Vendor patch released in version 2026.4.10 with commit afadb7dae6738819ad9c7d2597ace0516957d20e. No active exploitation confirmed (not in CISA KEV), but public advisory with commit details provides exploitation blueprint.

Denial Of Service Openclaw
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Network-accessible denial-of-service in HashiCorp Boundary workers allows unauthenticated remote attackers to block legitimate worker connections by manipulating TLS handshake timing during node enrollment. Attackers can connect to the worker authentication listener and intentionally delay or withhold client certificates, causing connection handlers to block and preventing legitimate workers from enrolling or routing traffic. Both Community Edition and Enterprise versions prior to 0.21.3, 0.20.3, and 0.19.5 are vulnerable. EPSS data not provided; no CISA KEV listing indicating limited observed exploitation. Vendor-confirmed vulnerability with patches released across three active release branches.

Denial Of Service Hashicorp Suse +2
NVD VulDB
EPSS 0% CVSS 9.0
CRITICAL PATCH Act Now

Authenticated attackers can escalate privileges to administrator in Pelican Web User Interface versions 7.21 through 7.24 by manipulating database records before legitimate admin users log in. This vulnerability was discovered by a Claude coding agent on April 2, 2026, and affects servers with Server.UIAdminUsers or Server.AdminGroups configured where designated admins have not previously authenticated. No public exploit code exists, and Pelican Command Line reports no confirmed exploitation in OSDF-managed services. Vendor patches are available across all affected minor release series (>=v7.21.5, >=v7.22.3, >=v7.23.3, >=v7.24.2), with fix commit 7f73b9c3e677 addressing CWE-863 (Incorrect Authorization).

Authentication Bypass Privilege Escalation Denial Of Service +2
NVD GitHub
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Memory exhaustion crashes Argo Workflows server via unauthenticated multi-gigabyte webhook requests to the publicly accessible `/api/v1/events/` endpoint. The Webhook Interceptor's `io.ReadAll` call allocates unbounded memory before signature verification, enabling remote attackers to trigger out-of-memory (OOM) conditions without authentication or credentials. Vendor-released patches enforce a 2MB body size limit via `io.LimitReader`. Publicly available exploit code exists (conceptual proof-of-concept published in GitHub security advisory GHSA-jcc8-g2q4-9fxq). No active exploitation confirmed by CISA KEV at time of analysis, but the low attack complexity (CVSS AV:N/AC:L/PR:N) and public PoC create immediate risk for internet-exposed Argo Workflows deployments.

Denial Of Service Kubernetes Suse
NVD GitHub VulDB
EPSS 0% CVSS 8.5
HIGH PATCH This Week

Missing authorization checks in Argo Workflows v4.0.0-4.0.4 allow any authenticated user-even those with fake Bearer tokens-to create, read, update, and delete Kubernetes ConfigMaps containing workflow synchronization limits. The ConfigMap-backed sync provider (server/sync/sync_cm.go) completely omits auth.CanI permission validation on all four CRUD endpoints. Publicly available exploit code exists (detailed PoC in advisory). CVSS 8.5 reflects network-accessible authentication bypass enabling high integrity/availability impact through denial-of-service and arbitrary ConfigMap manipulation. Patch released in version 4.0.5 adding checkConfigMapPermission() calls to validate Kubernetes RBAC before operations.

Authentication Bypass Denial Of Service Information Disclosure +2
NVD GitHub VulDB
EPSS 0% CVSS 7.1
HIGH PATCH This Week

Denial of service in Incus prior to version 7.0.0 allows authenticated users to crash the Incus daemon by importing a maliciously crafted backup archive with physical snapshot directories but tampered metadata arrays. The vulnerability stems from an incorrect bounds check (len(slice) >= i-1 instead of len(slice) > i) in the backup restore and migration code paths, enabling out-of-bounds array access that triggers a runtime panic. Repeated exploitation keeps the Incus service offline, confirmed by a publicly available proof-of-concept.

Buffer Overflow Denial Of Service Information Disclosure +1
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Unbounded cache growth in @fastify/accepts-serializer versions ≤6.0.3 allows remote unauthenticated attackers to exhaust Node.js heap memory by sending numerous distinct Accept header variants, crashing the application. The plugin caches serializer selections keyed by Accept header without size limits, enabling trivial memory exhaustion attacks against any exposed Fastify endpoint. Fix available in version 6.0.4, which implements an LRU cache with 100-entry default limit. No public exploit code identified at time of analysis, but attack is straightforward to execute with basic HTTP tools.

Denial Of Service Node.js Fastify Accepts Serializer
NVD GitHub VulDB
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Denial-of-service condition in Conditional Fields for Contact Form 7 WordPress plugin allows remote unauthenticated attackers to crash PHP processes by injecting arbitrarily large iteration values through REST API parameters. The Wpcf7cfMailParser class processes user-supplied POST data without validation, enabling attackers to trigger unbounded loops with multiple regex operations that exhaust server memory. Affects all versions through 2.6.7 with vendor patch now available. EPSS data not provided, but the network-accessible unauthenticated attack vector (AV:N/PR:N) combined with low complexity (AC:L) indicates straightforward exploitation potential against publicly accessible WordPress sites running this plugin.

PHP WordPress Denial Of Service +2
NVD VulDB
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Quick Facts

Typical Severity
MEDIUM
Category
other
Total CVEs
39810

MITRE ATT&CK

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