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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 (36616)

EPSS 0% CVSS 7.1
HIGH PATCH This Week

Information disclosure and denial-of-service in GNU Binutils' BFD linker (ld) arises from an out-of-bounds heap read when parsing malformed XCOFF object files. A local attacker who convinces a user to link or otherwise process a specially crafted XCOFF file can leak adjacent heap memory (CWE-125) or crash the linking process. Tracked by Red Hat across RHEL 6 through 10 and OpenShift 4; no public exploit is identified and EPSS exploitation probability is negligible (0.01%, 2nd percentile).

Denial Of Service Buffer Overflow Information Disclosure +6
NVD VulDB
EPSS 0% CVSS 7.1
HIGH PATCH This Week

Out-of-bounds heap read in the BFD linker (ld) component of GNU Binutils allows information disclosure or an application-level crash when a victim is induced to process a crafted XCOFF object file. Affected across Red Hat Enterprise Linux 6 through 10 (and OpenShift Container Platform 4), exploitation requires user interaction and local file processing - there is no public exploit identified at time of analysis, and the EPSS probability is negligible (0.01%, 2nd percentile).

Denial Of Service Buffer Overflow Information Disclosure +6
NVD VulDB
EPSS 0% CVSS 6.1
MEDIUM This Month

The STM32 USB device driver in Zephyr contains a logic error that can trigger an infinite loop, allowing a local attacker with user-level privileges to cause a denial of service by halting system responsiveness. No patch is currently available for this medium-severity defect that affects the USB subsystem's operational stability.

Denial Of Service Zephyr
NVD GitHub VulDB
EPSS 0% CVSS 5.3
MEDIUM POC PATCH This Month

The file-type library's ZIP file type detection functions fail to limit decompression output for known-size inputs, allowing attackers to craft small compressed ZIP files that expand to hundreds of megabytes in memory during processing. Applications processing untrusted file uploads are vulnerable to denial-of-service attacks that cause excessive memory consumption and potential crashes. Public exploit code exists for this vulnerability, though a patch is available.

Denial Of Service Red Hat
NVD GitHub VulDB
EPSS 0% CVSS 9.8
CRITICAL Act Now

Stack overflow in HMS Networks Ewon Flexy/Cosy+ firmware.

RCE Buffer Overflow Denial Of Service +1
NVD VulDB
EPSS 0% CVSS 7.5
HIGH This Week

CVE-2026-25819 is an unauthenticated denial of service vulnerability affecting HMS Networks Ewon industrial IoT gateways (Flexy and Cosy+ models) that allows remote attackers to reboot devices through specially crafted HTTP requests to the web GUI. With a CVSS score of 7.5 (High) but low EPSS score (0.02%), this vulnerability has not been added to CISA KEV and shows minimal exploitation activity in the wild.

Denial Of Service
NVD VulDB
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

IBM Aspera Console versions 3.3.0 through 3.4.8 contain an improper rate-limiting vulnerability in the email service that allows authenticated users to trigger a denial of service condition. An attacker with valid credentials can abuse the email functionality by sending requests at excessive frequencies, exhausting service resources and rendering the email feature unavailable to legitimate users. This vulnerability requires authentication and does not provide confidentiality or integrity impact, resulting in a moderate CVSS score of 5.3.

Denial Of Service IBM Aspera Console
NVD VulDB
EPSS 0% CVSS 2.7
LOW PATCH Monitor

IBM Aspera Console 3.3.0 through 3.4.8 could allow a privileged user to cause a denial of service due to improper enforcement of behavioral workflow.

Denial Of Service IBM
NVD VulDB
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Rust Yamux prior to version 0.13.10 is vulnerable to denial of service when processing specially crafted inbound stream frames that combine the SYN flag with oversized body lengths, causing the connection handler to panic due to improper state cleanup. An unauthenticated remote attacker can trigger this panic over any normal Yamux session without special privileges, crashing affected applications. No patch is currently available for this high-severity vulnerability.

Rust Denial Of Service Rust Yamux
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

LibreChat versions prior to 0.8.3-rc1 contain a Denial of Service vulnerability in the DELETE /api/convos endpoint where authenticated attackers can crash the Node.js server process by sending malformed requests lacking the required req.body.arg parameter. The vulnerability exploits improper destructuring without validation, causing an unhandled TypeError that bypasses Express middleware and triggers process.exit(1), resulting in complete service unavailability. No evidence of active exploitation in the wild or public POC has been identified at this time.

Node.js Denial Of Service AI / ML +1
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Denial of service vulnerability in CairoSVG (Python SVG rendering library) caused by exponential amplification through recursive <use> SVG elements without depth limits. An attacker can cause 100% CPU exhaustion indefinitely with a tiny 1,411-byte SVG file, affecting any service that processes SVG input (thumbnails, PDFs, avatars). A working proof-of-concept is publicly available, patches have been released, and while not in KEV, the vulnerability has a 7.5 CVSS score with network-based, unauthenticated exploitation.

Denial Of Service Python Red Hat +1
NVD GitHub VulDB
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Integer overflow in Rust's Yamux implementation allows unauthenticated remote attackers to crash target nodes by sending specially crafted WindowUpdate frames that trigger arithmetic overflow in stream send-window accounting. An attacker can establish a Yamux session and transmit malicious frames without authentication, causing a panic in the connection state machine and resulting in denial of service. A patch is available to address this high-severity vulnerability.

Denial Of Service Integer Overflow Rust
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Denial-of-service vulnerability in Gokapi, a file-sharing server, wherein an authenticated attacker can send unbounded request bodies to an API endpoint without size restrictions, causing out-of-memory (OOM) conditions that crash the service and deny access to all users. The vulnerability requires valid authentication credentials but no special privileges, and is classified as high-severity (CVSS 6.5) due to guaranteed availability impact. Patch availability exists in version 2.2.4 and later.

Denial Of Service Suse
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

A denial of service vulnerability in FreeRDP (CVSS 6.5). Remediation should follow standard vulnerability management procedures.

Denial Of Service Freerdp Red Hat +1
NVD GitHub VulDB
EPSS 0% CVSS 7.1
HIGH PATCH This Week

An uncontrolled resource consumption vulnerability in the Hex.pm package manager allows authenticated attackers to cause denial of service by uploading oversized packages that exhaust server memory during extraction. The vulnerability affects hexpm versions before commit 495f01607d3eae4aed7ad09b2f54f31ec7a7df01 and hex.pm installations before March 10, 2026, with a CVSS 4.0 score of 7.1 indicating high availability impact. No active exploitation has been reported (not in KEV), no public proof-of-concept exists, and EPSS data is not available.

Denial Of Service Hexpm Hex Pm
NVD GitHub VulDB
EPSS 0% CVSS 9.1
CRITICAL PATCH Act Now

Path traversal via dagRunId in DAG execution endpoints.

Python Authentication Bypass Denial Of Service +3
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Infinite loop in libarchive's RAR5 decompression (archive_read_data) allows remote unauthenticated denial-of-service via malformed archive that passes checksum validation. Affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4. EPSS 0.04% (11th percentile) suggests low exploitation probability despite CVSS 7.5. Vendor patches available from Red Hat and Ubuntu. Upstream fix in libarchive PR#2877. No active exploitation confirmed (not in CISA KEV).

Denial Of Service Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 6 +4
NVD GitHub VulDB
EPSS 0% CVSS 6.9
MEDIUM PATCH This Month

A remote code execution vulnerability (CVSS 6.9) that allows denial of service. Remediation should follow standard vulnerability management procedures. Vendor patch is available.

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

High severity vulnerability in wpDiscuz (WordPress plugin). wpDiscuz before 7.6.47 contains an unauthenticated denial of service vulnerability that allows anonymous users to trigger mass notification emails by exploiting the checkNotificationType() function. Attackers can repeatedly call the wpdiscuz-ajax.php endpoint with arbitrary postId and comment_id parameters to flood subscribers with notifications, as the handler lacks nonce verification, authent...

PHP Authentication Bypass Denial Of Service +1
NVD VulDB
EPSS 0% CVSS 5.9
MEDIUM PATCH This Month

Node.js Undici's response deduplication feature accumulates response bodies in memory instead of streaming them, allowing remote attackers to trigger denial of service through large or concurrent responses from untrusted endpoints. Applications using the deduplicate() interceptor are vulnerable to out-of-memory crashes when processing large or chunked responses. No patch is currently available.

Node.js Denial Of Service Undici +2
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Node.js undici WebSocket client denial-of-service vulnerability allows remote attackers to crash the process by sending a malformed permessage-deflate compression parameter that bypasses validation and triggers an uncaught exception. The vulnerability exists because the client fails to properly validate the server_max_window_bits parameter before passing it to zlib, enabling any WebSocket server to terminate connected clients. No patch is currently available.

Node.js Denial Of Service Undici
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Node.js undici WebSocket client denial-of-service via decompression bomb in permessage-deflate processing allows remote attackers to crash or hang affected processes through unbounded memory consumption. An attacker controlling a malicious WebSocket server can send specially crafted compressed frames that expand to extremely large sizes in memory without triggering any decompression limits. No patch is currently available for this vulnerability.

Node.js Denial Of Service Undici
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Medium severity vulnerability in Ella Networks Core. Ella Core panics when processing a PathSwitchRequest containing UE Security Capabilities with zero-length NR encryption or integrity protection algorithm bitstrings, resulting in a denial of service.

Denial Of Service Information Disclosure Buffer Overflow +1
NVD GitHub VulDB
EPSS 0% CVSS 5.5
MEDIUM POC PATCH This Month

Medium severity vulnerability in ImageMagick. # Specially crafted SVG file make segmentation fault and generate trash files in "/tmp", possible to leverage DoS.

Denial Of Service PHP Debian +3
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

command line text editor. From 9.1.0011 to versions up to 9.2.0137 is affected by null pointer dereference (CVSS 5.3).

Null Pointer Dereference Denial Of Service Vim +2
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Undici fails to normalize HTTP header names when processing arrays, allowing duplicate Content-Length headers with case-variant names (e.g., "Content-Length" and "content-length") to be sent in malformed requests. Applications using undici's low-level APIs with user-controlled header inputs are vulnerable to request rejection by strict HTTP parsers or potential HTTP request smuggling attacks if intermediaries and backend servers interpret conflicting header values inconsistently. No patch is currently available.

Denial Of Service Red Hat Suse
NVD GitHub VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

Heap buffer overflow vulnerability in LibreDWG versions v0.13.3.7571 up to v0.13.3.7835 allows a crafted DWG file to cause a Denial of Service (DoS) via the function decompress_R2004_section at decode.c.

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

flatted is a circular JSON parser. versions up to 3.4.0 is affected by uncontrolled recursion (CVSS 7.5).

Node.js Denial Of Service Flatted
NVD GitHub VulDB
EPSS 0% CVSS 4.8
MEDIUM This Month

Silent event loss in Inspektor Gadget prior to 0.50.1 allows local attackers to cause denial of service by filling the 256KB ring-buffer, which triggers undetected data drops without alerting users or administrators. When the buffer becomes full, gadgets silently discard events and fail to report the loss count, potentially hiding critical system events from Kubernetes cluster and Linux host monitoring. A local attacker with limited privileges can exploit this to obscure malicious activity or system anomalies by saturating the instrumentation buffer.

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

High severity vulnerability in Python multipart. The `parse_options_header()` function in `multipart.py` uses a regular expression with an *ambiguous alternation*, which can cause *exponential backtracking (ReDoS)* when parsing maliciously crafted HTTP or multipart segment headers. This can be abused for **denial of service (DoS)** attacks against web applications using this library to parse request headers or `multipart/form-data` streams.

Python Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 8.2
HIGH POC This Week

Jettweb Hazir Rent A Car Scripti V4 contains multiple SQL injection vulnerabilities in the admin panel that allow unauthenticated attackers to manipulate database queries through GET parameters. [CVSS 8.2 HIGH]

PHP SQLi Denial Of Service +1
NVD Exploit-DB VulDB
EPSS 0% CVSS 1.9
LOW Monitor

Use-after-free vulnerability in quickjs-ng through version 0.12.1 allows local attackers to corrupt memory and potentially execute arbitrary code via the js_iterator_concat_return function in quickjs.c. Public exploit code exists for this vulnerability. A local account is required to trigger the flaw, which affects confidentiality, integrity, and availability of the affected system.

Buffer Overflow Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 6.9
MEDIUM PATCH This Month

Denial of service in yauzl 3.2.0 (Node.js zip parsing library) allows remote attackers to crash applications by submitting malformed zip files with specially crafted NTFS timestamp fields that trigger an out-of-bounds buffer read. The vulnerability affects any Node.js application that processes untrusted zip uploads and extracts file modification dates. No patch is currently available.

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

Use after free in WebView in Google Chrome on Android versions up to 146.0.7680.71 is affected by use after free (CVSS 8.8).

Google Use After Free Memory Corruption +4
NVD VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

use after free in WindowDialog in Google Chrome versions up to 146.0.7680.71 is affected by use after free (CVSS 7.5).

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

Use after free in WebMIDI in Google Chrome versions up to 146.0.7680.71 is affected by use after free (CVSS 8.8).

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

Use after free in MediaStream in Google Chrome versions up to 146.0.7680.71 is affected by use after free (CVSS 8.8).

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

Use after free in TextEncoding in Google Chrome versions up to 146.0.7680.71 is affected by use after free (CVSS 8.8).

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

Use after free in Extensions in Google Chrome versions up to 146.0.7680.71 is affected by use after free (CVSS 8.8).

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

Use after free in WebMCP in Google Chrome versions up to 146.0.7680.71 is affected by use after free (CVSS 8.8).

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

Use after free in Agents in Google Chrome versions up to 146.0.7680.71 is affected by use after free (CVSS 8.8).

Google Use After Free Denial Of Service +4
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Quill before v0.7.1 is susceptible to denial of service through unbounded memory allocation when processing maliciously crafted Mach-O binaries. Environments accepting externally-submitted binaries for signing—such as CI/CD pipelines and shared signing services—face resource exhaustion attacks if they process attacker-controlled files. An authenticated local attacker can trigger excessive memory consumption by exploiting unvalidated size fields in code signing structures, causing the application to crash or hang.

Golang Denial Of Service Suse
NVD GitHub VulDB
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Unbounded memory consumption in Quill's Apple notarization process allows denial of service when HTTP responses lack size validation, affecting environments with TLS-intercepting proxies or compromised certificate authorities where response manipulation is possible. An attacker positioned to intercept or modify notarization API responses can return arbitrarily large payloads to exhaust memory and crash the signing process. This impacts corporate networks and environments with trust boundary violations, though exploitation is not feasible under standard HTTPS conditions with proper certificate validation.

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

In versions of Tornado prior to 6.5.5, the only limit on the number of parts in `multipart/form-data` is the `max_body_size` setting (default 100MB). Since parsing occurs synchronously on the main thread, this creates the possibility of denial-of-service due to the cost of parsing very large multipart bodies with many parts. Tornado 6.5.5 introduces new limits on the size and complexity of multipart bodies, including a default limit of 100 parts per request. These limits are configurable if needed; see `tornado.httputil.ParseMultipartConfig`. It is also now possible to disable `multipart/form-data` parsing entirely if it is not required for the application.

Python Denial Of Service Red Hat +1
NVD GitHub VulDB
EPSS 0% CVSS 9.8
CRITICAL Act Now

SQL injection in WeGIA before 3.6.6.

PHP SQLi Denial Of Service +2
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH This Week

Stack buffer overflow in RIOT OS coap_well_known_core_default_handler allows unauthenticated remote attackers to overwrite critical stack data including return addresses through oversized CoAP option responses. Affected IoT devices running RIOT 2026.01 and earlier are vulnerable to denial of service or arbitrary code execution without any user interaction required. No patch is currently available for this vulnerability.

IoT Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 3.6
LOW Monitor

Dell Alienware Command Center (AWCC), versions prior to 6.12.24.0, contain an Improper Access Control vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Denial of service. [CVSS 3.6 LOW]

Denial Of Service
NVD VulDB
EPSS 0% CVSS 6.9
MEDIUM POC This Month

WinMPG iPod Convert 3.0 contains a buffer overflow vulnerability in the Register dialog that allows local attackers to crash the application by supplying an oversized payload. [CVSS 6.2 MEDIUM]

Buffer Overflow Denial Of Service Memory Corruption
NVD Exploit-DB VulDB
EPSS 0% CVSS 8.7
HIGH POC This Week

GetGo Download Manager 6.2.2.3300 contains a buffer overflow vulnerability that allows remote attackers to cause denial of service by sending HTTP responses with excessively long headers. [CVSS 7.5 HIGH]

Buffer Overflow Denial Of Service Memory Corruption
NVD Exploit-DB VulDB
EPSS 0% CVSS 6.9
MEDIUM POC This Month

Outlook Password Recovery 2.10 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized payload. [CVSS 6.2 MEDIUM]

Buffer Overflow Denial Of Service Memory Corruption +1
NVD Exploit-DB VulDB
EPSS 0% CVSS 6.9
MEDIUM POC This Month

SQL Server Password Changer 1.90 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized payload. Attackers can inject 6000 bytes of data into the User Name and Registration Code field to trigger a denial of service condition. [CVSS 6.2 MEDIUM]

Buffer Overflow Denial Of Service Memory Corruption
NVD Exploit-DB VulDB
EPSS 0% CVSS 6.9
MEDIUM POC This Month

Easy MP3 Downloader 4.7.8.8 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long unlock code. [CVSS 6.2 MEDIUM]

Buffer Overflow Denial Of Service Memory Corruption
NVD Exploit-DB VulDB
EPSS 0% CVSS 6.9
MEDIUM POC This Month

Folder Lock 7.7.9 contains a buffer overflow vulnerability in the serial number registration field that allows local attackers to crash the application by submitting an oversized payload. [CVSS 6.2 MEDIUM]

Buffer Overflow Denial Of Service Memory Corruption
NVD Exploit-DB VulDB
EPSS 0% CVSS 6.7
MEDIUM POC This Month

InputMapper 1.6.10 contains a buffer overflow vulnerability in the username field that allows local attackers to crash the application by entering an excessively long string. [CVSS 5.5 MEDIUM]

Buffer Overflow Denial Of Service
NVD Exploit-DB VulDB
EPSS 0% CVSS 6.9
MEDIUM POC This Month

SpotIE Internet Explorer Password Recovery 2.9.5 contains a denial of service vulnerability in the registration key input field that allows local attackers to crash the application by supplying an excessively long string. [CVSS 6.2 MEDIUM]

Buffer Overflow Denial Of Service Memory Corruption
NVD Exploit-DB VulDB
EPSS 0% CVSS 7.5
HIGH PATCH This Week

cpp-httplib versions prior to 0.37.1 crash when the streaming API receives a malformed Content-Length header from any server, as the library fails to validate or handle exceptions from the underlying string parsing function. An attacker can exploit this denial of service condition by hosting a malicious server, performing a man-in-the-middle attack, or leveraging HTTP redirects to crash any client application using the vulnerable library. Currently no patch is available for this issue.

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

Kubernetes flagd feature flag daemon versions before 0.14.2 are vulnerable to denial of service through unbounded memory allocation on publicly accessible evaluation endpoints. An unauthenticated attacker can send HTTP requests with arbitrarily large payloads to exhaust memory and crash the service. This affects deployments without external authentication controls, allowing trivial process termination in containerized environments.

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

In devalue v5.6.3, `devalue.parse` and `devalue.unflatten` were susceptible to prototype pollution via maliciously crafted payloads. Successful exploitation could lead to Denial of Service (DoS) or type confusion.

Denial Of Service Prototype Pollution Devalue +2
NVD GitHub VulDB
EPSS 0% CVSS 6.8
MEDIUM This Month

Network interface denial of service in Cisco IOS XR on NCS 5500/5700 routers allows unauthenticated remote attackers to disable packet processing by sending crafted traffic that triggers EPNI Aligner interrupt corruption during heavy transit conditions. Successful exploitation causes the network processing unit and ASIC to stop functioning, rendering affected interfaces unable to forward traffic. No patch is currently available for this medium-severity vulnerability.

Cisco Denial Of Service
NVD VulDB
EPSS 0% CVSS 7.4
HIGH This Week

Cisco IOS XR Software's IS-IS routing implementation fails to properly validate incoming protocol packets, enabling an adjacent network attacker to trigger repeated process crashes and temporary routing outages. An attacker with Layer 2 adjacency can send malformed IS-IS packets to force denial of service conditions affecting network connectivity. No patch is currently available for this high-severity vulnerability.

Cisco Denial Of Service Apple +1
NVD VulDB
EPSS 0% CVSS 7.5
HIGH This Week

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 versions up to 18.9.2 is affected by uncontrolled recursion (CVSS 7.5).

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.11 versions up to 18.7.6 contains a security vulnerability (CVSS 7.5).

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

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.0 versions up to 18.7.6 is affected by allocation of resources without limits or throttling (CVSS 7.5).

Gitlab Denial Of Service
NVD VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.11 versions up to 18.7.6 is affected by allocation of resources without limits or throttling (CVSS 6.5).

Gitlab Denial Of Service
NVD VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 9.3 versions up to 18.7.6 is affected by allocation of resources without limits or throttling (CVSS 6.5).

Gitlab Denial Of Service
NVD VulDB
EPSS 0% CVSS 6.2
MEDIUM PATCH This Month

Denial of service in GNU C Library 2.36 on x86_64 systems occurs when nscd-backed functions trigger a race condition in the optimized memcmp implementation, allowing concurrent thread modification of input data to cause application crashes. This affects any application using NSS caching functionality under high load conditions. No patch is currently available.

Denial Of Service Glibc
NVD VulDB
EPSS 0% CVSS 8.7
HIGH PATCH This Week

OpenClaw versions2026.2.21-2 versions up to 2026.2.22 is affected by allocation of resources without limits or throttling (CVSS 7.5).

Denial Of Service Openclaw Openclaw Voice Call
NVD GitHub VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

pypdf is a free and open-source pure-python PDF library. versions up to 6.8.0 is affected by allocation of resources without limits or throttling.

Python Denial Of Service Pypdf +2
NVD GitHub VulDB
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. Prior to 0.11.14, a remote, unauthenticated attacker can trigger a denial of service in applications using vulnerable quinn versions by sending a crafted QUIC Initial packet containing malformed quic_transport_parameters. In quinn-proto parsing logic, attacker-controlled varints are decoded with unwrap(),...

Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

Denial of service in file-type library versions prior to 21.3.1 allows remote attackers to hang Node.js event loops by submitting malformed ASF (WMV/WMA) files that trigger infinite loops during file type detection. Applications using file-type to analyze untrusted input are vulnerable, with a minimal 55-byte payload sufficient to stall processing. No patch is currently available for affected Node.js and File Type products.

Node.js Denial Of Service File Type +1
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

OpenAPI documentation and client-server communication. versions up to 1.4.26 is affected by inefficient regular expression complexity (redos) (CVSS 7.5).

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

Android versions up to - is affected by improper check for unusual or exceptional conditions (CVSS 7.5).

Denial Of Service Android Google
NVD VulDB
EPSS 0% CVSS 5.3
MEDIUM This Month

Envoy proxy versions prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13 can be crashed by an authenticated attacker through improper state cleanup in the rate limit filter when both request and response phase limiting are enabled. When a response phase rate limit request fails, the gRPC client reuses stale internal state from the prior request phase, leading to a use-after-free condition that crashes the proxy. An attacker with network access and valid credentials can exploit this to cause a denial of service against Envoy instances.

Denial Of Service Envoy
NVD GitHub VulDB
EPSS 0% CVSS 5.9
MEDIUM POC This Month

Envoy proxy versions prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13 crash when processing scoped IPv6 addresses through the Utility::getAddressWithPort function, which is invoked by the original_src and dns filters in the data plane. This denial of service vulnerability can be triggered remotely without authentication, and public exploit code exists. No patch is currently available for affected deployments.

DNS Denial Of Service Envoy
NVD GitHub VulDB
EPSS 0% CVSS 5.3
MEDIUM POC This Month

Envoy is a high-performance edge/middle/service proxy. [CVSS 5.3 MEDIUM]

Denial Of Service Envoy
NVD GitHub VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

DNG SDK versions 1.7.1 and earlier contain an integer overflow vulnerability that allows local attackers to crash affected applications through specially crafted files. Exploitation requires user interaction, as victims must open a malicious file to trigger the denial-of-service condition. No patch is currently available for this vulnerability.

Integer Overflow Denial Of Service Dng Software Development Kit
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

Substance 3D Painter versions 11.1.2 and earlier contain a null pointer dereference that allows local attackers to crash the application by tricking users into opening malicious files. This denial-of-service vulnerability requires user interaction but requires no elevated privileges to exploit. No patch is currently available for this medium-severity issue.

Null Pointer Dereference Denial Of Service Substance 3d Painter
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

Substance 3D Painter versions 11.1.2 and earlier contain a null pointer dereference that enables local denial-of-service attacks when users open specially crafted files. An attacker can crash the application to disrupt workflow, though exploitation requires user interaction and no patch is currently available. The vulnerability has a moderate CVSS score of 5.5 with zero percent estimated exploitation probability.

Null Pointer Dereference Denial Of Service Substance 3d Painter
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

Substance 3D Painter versions 11.1.2 and earlier contain a null pointer dereference vulnerability that allows local attackers to crash the application by convincing users to open a malicious file. This denial-of-service impact disrupts application availability, though no patch is currently available. User interaction is required for exploitation, and the vulnerability affects local attack scenarios only.

Null Pointer Dereference Denial Of Service Substance 3d Painter
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

Denial-of-service in Substance 3D Painter 11.1.2 and earlier stems from improper null pointer handling that crashes the application when processing malicious files. An attacker can trigger this crash by tricking a user into opening a specially crafted file, temporarily disrupting the victim's workflow. No patch is currently available to address this vulnerability.

Null Pointer Dereference Denial Of Service Substance 3d Painter
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

Denial-of-service crashes in Adobe Substance 3D Painter versions 11.1.2 and earlier stem from a null pointer dereference vulnerability triggered when users open specially crafted files. An attacker can exploit this flaw to force application crashes and disrupt user workflows, though no patch is currently available. Exploitation requires social engineering to convince victims to open a malicious file.

Null Pointer Dereference Denial Of Service Substance 3d Painter
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

Substance 3D Painter versions 11.1.2 and earlier contain a null pointer dereference vulnerability that allows local attackers to crash the application by tricking users into opening a malicious file. This denial-of-service condition disrupts workflow for affected users, though no patch is currently available. The vulnerability requires user interaction and does not enable code execution or data compromise.

Null Pointer Dereference Denial Of Service Substance 3d Painter
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

iccDEV provides a set of libraries and tools for working with ICC color management profiles. versions up to 2.3.1.5 is affected by out-of-bounds read (CVSS 5.5).

Denial Of Service Buffer Overflow Information Disclosure +1
NVD GitHub VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

iccDEV provides a set of libraries and tools for working with ICC color management profiles. versions up to 2.3.1.5 is affected by out-of-bounds read (CVSS 5.5).

Denial Of Service Buffer Overflow Information Disclosure +1
NVD GitHub VulDB
EPSS 0% CVSS 7.8
HIGH This Week

iccDEV provides a set of libraries and tools for working with ICC color management profiles. versions up to 2.3.1.5 is affected by null pointer dereference (CVSS 7.8).

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

iccDEV provides a set of libraries and tools for working with ICC color management profiles. versions up to 2.3.1.5 is affected by use after free (CVSS 7.8).

Use After Free Denial Of Service Memory Corruption +1
NVD GitHub VulDB
EPSS 0% CVSS 7.1
HIGH PATCH This Week

StudioCMS prior to version 0.4.0 allows authenticated editors and above to revoke API tokens belonging to any user, including administrators and owners, due to insufficient authorization checks on the DELETE /studiocms_api/dashboard/api-tokens endpoint. An attacker with editor privileges can exploit this to disable critical integrations and automations by revoking tokens of higher-privileged accounts. No patch is currently available for affected versions.

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

Unauthenticated attackers can crash Parse Server instances by invoking Cloud Function endpoints with prototype property names, triggering infinite recursion and process termination. Additionally, attackers can bypass validation checks using prototype pollution techniques to elicit HTTP 200 responses for non-existent functions. All Parse Server versions prior to 8.6.13 and 9.5.1-alpha.2 are affected when the Cloud Function endpoint is exposed.

Node.js Denial Of Service Parse Server
NVD GitHub VulDB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally. [CVSS 7.8 HIGH]

Use After Free Microsoft Memory Corruption +2
NVD VulDB
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Uncontrolled resource allocation in ASP.NET Core enables unauthenticated remote attackers to exhaust system resources and cause denial of service without requiring user interaction. The vulnerability affects .NET applications exposed to network access, allowing attackers to trigger unbounded resource consumption from any network location. A patch is available to address this issue.

Denial Of Service Asp Net Core
NVD VulDB
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Quick Facts

Typical Severity
MEDIUM
Category
other
Total CVEs
36616

MITRE ATT&CK

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