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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 (36916)

EPSS 0% CVSS 2.9
LOW Monitor

A denial of service (DoS) vulnerability has been identified in the JavaScript library microlight version 0.0.7. This library, used for syntax highlighting, does not limit the size of textual content it processes in HTML elements with the microlight class. When excessively large content (e.g., 100 million characters) is processed, the reset function in microlight.js consumes excessive memory and CPU resources, causing browser crashes or unresponsiveness. An attacker can exploit this vulnerability by tricking a user into visiting a malicious web page containing a microlight element with large content, resulting in a denial of service. NOTE: this is disputed by multiple parties because a large amount of memory and CPU resources is expected to be needed for content of that size.

Denial Of Service
NVD GitHub
EPSS 0% CVSS 2.9
LOW Monitor

A NULL pointer dereference vulnerability has been identified in the JavaScript library microlight version 0.0.7, a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. NOTE: this is disputed by multiple parties because there is no common scenario in which an adversary can insert those non-standard values.

Null Pointer Dereference Denial Of Service
NVD GitHub
EPSS 0% CVSS 5.5
MEDIUM POC PATCH This Month

A flaw was found in libgepub, a library used to read EPUB files. The software mishandles file size calculations when opening specially crafted EPUB files, leading to incorrect memory allocations. This issue causes the application to crash. Known affected usage includes desktop services like Tumbler, which may process malicious files automatically when browsing directories. While no direct remote attack vectors are confirmed, any application using libgepub to parse user-supplied EPUB content could be vulnerable to a denial of service.

Denial Of Service Integer Overflow Ubuntu +4
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service.

Denial Of Service
NVD
EPSS 0% CVSS 6.3
MEDIUM PATCH This Month

A path traversal vulnerability exists in the file dropoff functionality of ZendTo versions 6.15-7 and prior. This could allow a remote, authenticated attacker to retrieve the files of other ZendTo users, retrieve files on the host system, or cause a denial of service.

Denial Of Service Path Traversal
NVD
EPSS 0% CVSS 4.3
MEDIUM PATCH This Month

CVE-2025-6069 is a security vulnerability (CVSS 4.3). Remediation should follow standard vulnerability management procedures.

Denial Of Service Debian Ubuntu +2
NVD GitHub
EPSS 0% CVSS 1.9
LOW POC PATCH Monitor

Denial of service in spdlog up to 1.15.1 via the scoped_padder function in pattern_formatter-inl.h allows local attackers to cause resource consumption. Public exploit code exists, but EPSS score is low (0.05%) and no active exploitation in CISA KEV.

Denial Of Service Spdlog
NVD GitHub VulDB
EPSS 0% CVSS 9.8
CRITICAL POC Act Now

Critical permissions bypass vulnerability in Google Chrome OS 16181.27.0 that allows local attackers to disable extensions and gain unauthorized access to Developer Mode on managed Chrome devices. The vulnerability is exploited using the ExtHang3r and ExtPrint3r tools to load arbitrary extensions, affecting enterprise-managed deployments with a CVSS score of 9.8 (critical severity). Active exploitation status and proof-of-concept availability should be verified through CISA KEV and security advisories.

Privilege Escalation Google Denial Of Service +2
NVD
EPSS 0% 5.3 CVSS 9.1
CRITICAL POC PATCH Act Now

Memory corruption in libxml2's processing of schematron sch:name elements allows remote attackers to trigger crashes or potentially execute code via maliciously crafted XML files. Affects widespread deployments including Red Hat Enterprise Linux 7-10, OpenShift Container Platform 4.12-4.20, Ubuntu, and Debian distributions. CVSS 9.1 critical severity with network-exploitable vector requiring no authentication. Publicly available exploit code exists (POC confirmed). EPSS score of 0.49% suggests relatively low observed exploitation attempts despite critical rating. Not listed in CISA KEV, indicating no confirmed mass exploitation campaigns at time of analysis. Vendor patches available across all affected Red Hat products with specific versions documented.

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

NULL pointer dereference in libxml2's XPath processing engine crashes applications parsing untrusted XML. Affects all major Linux distributions including Red Hat Enterprise Linux 10, Ubuntu (10 releases), Debian (8 releases), and SUSE. Remote unauthenticated attackers can trigger denial of service by sending crafted XPath expressions embedded in XML documents. Publicly available exploit code exists (GitHub gist). EPSS score is low (0.15%, 36th percentile) indicating limited widespread exploitation observed, and not currently listed in CISA KEV. Vendor patches available from Red Hat (2.12.5-7.el10_0), SUSE, and upstream libxml2 project.

Denial Of Service
NVD GitHub
EPSS 0% 5.3 CVSS 9.1
CRITICAL POC PATCH Act Now

Use-after-free in libxml2 XPath parsing allows remote attackers to crash applications via malicious XML Schematron documents. The vulnerability (CVSS 9.1) affects widespread Red Hat ecosystem products including RHEL 7-10 and OpenShift 4.12-4.20, with vendor patches available. Public exploit code exists but CISA KEV does not list active exploitation. EPSS score of 0.11% (30th percentile) suggests low observed exploitation probability despite critical CVSS rating and POC availability, indicating targeted research interest rather than mass exploitation.

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

Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901

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

A remote code execution vulnerability in Apache Tomcat (CVSS 7.5). High severity vulnerability requiring prompt remediation.

Apache Tomcat Denial Of Service +3
NVD HeroDevs GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Apache Commons FileUpload contains a Denial of Service vulnerability in multipart header processing due to insufficient resource allocation limits (CWE-770). Affected versions are 1.0 through 1.5.x and 2.0.0-M1 through 2.0.0-M3. An unauthenticated remote attacker can exploit this with a network request to cause resource exhaustion and service unavailability without requiring user interaction or elevated privileges. CVSS 7.5 (High) reflects the high availability impact; KEV and EPSS data availability would determine exploitation likelihood in the wild.

Apache Denial Of Service Java +3
NVD GitHub
EPSS 0% CVSS 1.9
LOW POC PATCH Monitor

We are asked to synthesize data from multiple intelligence sources about CVE-2025-6119 into a comprehensive JSON analysis. The input includes description, CVSS score (1.9 with CVSS 4.0 vector), EPSS, patch status, CPE, tags, affected versions from EUVD, references. There is also a GitHub issue link indicating it's a fuzzer bug. We need to output JSON with specified fields. All fields are plain text strings. We must use all data and cross-reference. Let's parse the input: - CVE-2025-6119 - Description: Critical vulnerability in Assimp up to 5.4.3, function Assimp::BVHLoader::ReadNodeChannels in BVHLoader.cpp, use after free when manipulating pNode. Local attack required. Exploit publicly disclosed. Project decided to collect all fuzzer bugs in a main issue to address later. - CVSS 4.0 vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X This gives: Attack Vector Local, Attack Complexity Low, Attack Requirements None, Privileges Required Low, User Interaction None, Vulnerable System Confidentiality Low, Integrity Low, Availability Low, Subsequent System all None. Exploit maturity P (Proof of concept). No additional environmental metrics. - EPSS: 0.05% (14th percentile) – very low exploitation probability. - KEV: Not mentioned, so assume not in KEV. - Patch: "Available from vendor" but the description says "decided to collect all Fuzzer bugs in a main-issue to address them in the future" implying maybe not an immediate specific patch. The patch info says available, but from the references we see a GitHub issue link. Let's check: The references include https://github.com/assimp/assimp/issues/6219 which is the main issue for fuzzer bugs. There might be a fix commit? The patch status says "Available from vendor", but I need to be careful: The patch might be available as a fix in the main branch or a subsequent release? The project seems to be aggregating fuzzer bugs, so maybe not yet fixed in a release. However, the input explicitly says "Patch: Available from vendor". I'll trust that, but note the nuance: maybe the fix is available in the development branch, not a tagged release. In remediation, I'll mention upgrading to a version where this is fixed, but I don't have an exact version number. I can suggest monitoring the main issue for a patched release. Also, CVSS vector has exploit maturity P (proof-of-concept) which indicates exploit code is available (which aligns with "exploit has been disclosed to the public"). - CPE: cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:* This indicates all versions of Assimp. - Tags: Buffer Overflow, Denial Of Service. The vulnerability is use-after-free, which can lead to these. - EUVD: ID EUVD-2025-18390, affected versions: 5.4.3, 5.4.0, 5.4.1, 5.4.2. So all 5.4.x up to 5.4.3. - Ubuntu priority medium, 9 releases tracked: suggests it's not critical for Ubuntu. - Debian 5 releases tracked, bug#1107935. - References: several, including exploit reproduction tarball. Now, construct JSON fields: 1. product_name: "Assimp" or "Open Asset Import Library Assimp". Must be 1-3 words, specific product. So "Assimp" is the product, but "Open Asset Import Library Assimp" is the full name. "Assimp" is sufficient and within 3 words. So: "Assimp". 2. summary: Need 2-3 sentence plain-language synthesis for security professionals. Original: start with specific impact verb and product. So: "Use-after-free in Assimp BVHLoader allows local attackers to achieve memory corruption, potentially leading to denial of service or code execution in applications processing malicious BVH model files. Affects Assimp up to 5.4.3; exploit code is publicly available but no active exploitation confirmed. The vulnerability stems from improper memory management in ReadNodeChannels and has a high local attack complexity with low privileges required." But note: CVSS says attack complexity low, yet local attack vector. So I'll say "local attackers with low privileges" and mention exploit availability. CVSS score is only 1.9, but that's CVSS 4.0, which is very low. However, the description says "critical" but CVSS 4.0 base score (without temporal) would be something higher? Let's compute CVSS 4.0 base score from the vector: AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L => base score might be around 4.6? But the given score is 1.9, probably incorporating the temporal metric E:P (which reduces it). CVSS 4.0 score 1.9 is low. So the risk might be low, but exploit available. I'll incorporate that. Summary: "Use-after-free vulnerability in Assimp's BVHLoader enables local attackers to corrupt memory when processing crafted BVH files, potentially causing crashes or arbitrary code execution. Affects Assimp versions up to 5.4.3; proof-of-concept exploit code is publicly available. No active exploitation has been reported, and the low CVSS 4.0 score of 1.9 reflects the local-only attack vector and limited impact." 3. technical_context: Explain technology/library/protocol. Assimp is an open-source library for importing various 3D model formats. BVHLoader handles Biovision Hierarchy files (motion capture data). Use-after-free arises from incorrect handling of node channels. CWE-119 is "Improper Restriction of Operations within the Bounds of a Memory Buffer", but use-after-free is more commonly CWE-416. The CWE is given as CWE-119 which is a parent of buffer errors. I'll reference that but explain the memory corruption. Mention CPE data: all versions of assimp. So: "Assimp is a widely-used open-source asset import library that processes 3D model formats, including motion capture BVH files. The failure occurs in the BVHLoader's ReadNodeChannels method, where a freed pointer (pNode) is later accessed, leading to undefined behavior. This class of weakness (CWE-119) often results from insufficient validation of memory state during parsing." 4. risk_assessment: Use CVSS vector details, EPSS, KEV, POC, SSVC. KEV: no, so not actively exploited. EPSS: 0.05% (low). POC: publicly available. CVSS vector: local, low complexity, low privileges, no user interaction, vulnerable system confidentiality low, integrity low, availability low. So it's a low-privilege local code execution or crash. EPSS suggests very low likelihood of large-scale exploitation. However, exploit code is public, raising risk if attackers can craft malicious files. But because it's local and requires user to open a malicious BVH file with an application using Assimp, risk is moderate. "CVSS 4.0 score of 1.9 reflects the local-only attack vector (AV:L) and low impact (VC:L/VI:L/VA:L) combined with proof-of-concept exploit maturity (E:P). EPSS probability is 0.05%, well below the median, indicating negligible likelihood of widespread exploitation. The vulnerability is not listed in CISA KEV, and no active exploitation has been reported. While exploit code is public, the attack requires a local attacker with low privileges and user interaction to open a malicious file, limiting its real-world urgency." I'll also note that despite the CNA classifying it as critical, the CVSS score is low. I must not present uncertain info as fact. I'll state the given CVSS vector explicitly. The description says "manipulation of the argument pNode leads to use after free". No authentication required beyond local access. So it's local attacker with low privileges. So that's consistent. 5. affected_products: List affected products with versions, CPE, and advisory links. EUVD lists 5.4.0-5.4.3. CPE says all versions. The references include the GitHub issue (#6219) which might be the advisory. So: "Assimp versions 5.4.0 through 5.4.3 (inclusive) are affected, as tracked by CPE cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:* and confirmed by EUVD. The vendor advisory is available at the GitHub issue https://github.com/assimp/assimp/issues/6219, which consolidates multiple fuzzer findings." 6. remediation: Patch available per vendor advisory. Provide actionable steps. "Upgrade to a patched version of Assimp once available; the vendor is tracking fixes in issue #6219. In the interim, avoid processing untrusted BVH files in applications using the library. If immediate upgrade is not feasible, consider disabling BVH loader support if your application allows, or sandboxing the process that handles model loading. Note that disabling the loader may break functionality depending on BVH files." I'll reference the advisory URL. Also, exact fix version not provided, so I'll say "Upgrade to the latest release" or "apply the fix from the main branch". Since patch available from vendor, likely it's a commit or release candidate. I'll state: "The Assimp project has addressed this vulnerability in the main development branch; apply the fix from commit referenced in issue #6219 or upgrade to the next official release containing the fix. Until then, mitigate by restricting file inputs to trusted sources or disabling the BVH importer." 7. exploit_scenario: Brief attack scenario: "A local attacker with low privileges crafts a malicious BVH file and convinces a user to open it with a vulnerable application such as a 3D editor or game engine that uses Assimp. Upon parsing, the use-after-free corrupts memory, potentially allowing arbitrary code execution in the context of the application." 8. exploitation_conditions: Must be specific. "Exploitation requires an application to be built with a vulnerable version of Assimp (up to 5.4.3) and the attacker to supply a specially crafted BVH file for processing. No authentication beyond local access is needed; however, user interaction is required to load the malicious file." Also, note that it's local, meaning attacker needs local access to the system or can trick user into opening the file. The CVSS says PR:L, so low privileges. So: "Local attacker with low privileges can exploit this if the application processes BVH files from untrusted sources. The vulnerability is triggered when the BVHLoader parses node channels in a crafted file, so the attack surface depends on the application’s file ingestion workflow." 9. attack_chain: Short steps separated by arrows. Use kill chain phases. Example: "Craft malicious BVH file → Deliver file to target system → User opens file with vulnerable application → Assimp BVHLoader triggers use-after-free → Memory corruption leads to crash or code execution." That is 5 steps. Could be: "Create malformed BVH file → Lure user to open file in Assimp-based app → BVHLoader processes file → pNode freed and reused → Arbitrary code execution or DoS." I'll structure as: "Attacker creates crafted BVH file → User loads file in application linked to Assimp → Assimp parses BVH, triggering use-after-free → Memory state corrupted → Potential arbitrary code execution or application crash." Use arrow for each step. 10. confidence_notes: "CVE published by CNA VulDB; CVSS 4.0 score provided by NVD; exploit code publicly available via GitHub; patch availability indicated by vendor but delayed pending consolidation of fuzzer fixes. Affected versions confirmed by EUVD. No KEV listing, and EPSS is very low. Active exploitation is not indicated." 11. prevalence: "medium" – Assimp is a widely-used library in 3D applications, game development, and modeling software, but not as ubiquitous as OpenSSL or nginx. It's common but not universal. So "medium". 12. prevalence_basis: "popular open-source 3D model import library used in many applications" (within 12 words). So "popular 3D import library in game and modeling tools". 13. assessed_cvss_vector: Need my own independent CVSS 3.1 vector. Since given is CVSS 4.0, I need to map to 3.1. The vulnerability is local, low complexity, low

Denial Of Service Buffer Overflow Assimp
NVD GitHub VulDB
EPSS 0% CVSS 9.8
CRITICAL PATCH Act Now

A buffer overflow vulnerability (CVSS 9.8). Critical severity with potential for significant impact on affected systems.

Buffer Overflow Heap Overflow Apache +2
NVD GitHub
EPSS 0% CVSS 6.1
MEDIUM PATCH This Month

A flaw was found in GIMP. An integer overflow vulnerability exists in the GIMP "Despeckle" plug-in. The issue occurs due to unchecked multiplication of image dimensions, such as width, height, and bytes-per-pixel (img_bpp), which can result in allocating insufficient memory and subsequently performing out-of-bounds writes. This issue could lead to heap corruption, a potential denial of service (DoS), or arbitrary code execution in certain scenarios.

Denial Of Service RCE Integer Overflow +1
NVD
EPSS 0% CVSS 5.6
MEDIUM PATCH This Month

Worker process denial of service through file read operation. .A vulnerability exists in the Master's “pub_ret” method which is exposed to all minions. The un-sanitized input value “jid” is used to construct a path which is then opened for reading. An attacker could exploit this vulnerabilities by attempting to read from a filename that will not return any data, e.g. by targeting a pipe node on the proc file system.

Denial Of Service Debian Ubuntu +1
NVD GitHub
EPSS 0% CVSS 7.1
HIGH This Week

CVE-2025-44019 is an uncaught exception vulnerability in AVEVA PI Data Archive that allows authenticated users to crash critical subsystems, causing denial of service and potential data loss in write caches. The vulnerability affects AVEVA PI Data Archive products across multiple versions and requires valid credentials to exploit, making it a medium-to-high risk for organizations relying on AVEVA's industrial data infrastructure.

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

AVEVA PI Data Archive products are vulnerable to an uncaught exception that, if exploited, could allow an authenticated user to shut down certain necessary PI Data Archive subsystems, resulting in a denial of service.

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

Memory management vulnerability in Absolute Secure Access server versions 9.0 through 13.54 that allows unauthenticated, network-based attackers to trigger a Denial of Service condition by sending specially crafted packet sequences. The vulnerability requires no privileges or user interaction and has high availability impact (complete service disruption), though no data confidentiality or integrity risk. This is a critical operational risk for organizations dependent on Absolute Secure Access for remote connectivity.

Denial Of Service Memory Corruption Buffer Overflow +1
NVD
EPSS 0% CVSS 7.5
HIGH POC This Week

A buffer overflow vulnerability exists in Tenda AC6 router firmware version 15.03.05.16 that allows unauthenticated remote attackers to trigger a denial of service condition by sending oversized parameters (schedStartTime and schedEndTime) to the /goform/openSchedWifi endpoint. The vulnerability is network-accessible without authentication or user interaction, making it trivially exploitable for DoS attacks against affected routers. While the CVSS score indicates high severity (7.5), the actual impact appears limited to availability (DoS only), with no confirmed code execution or data disclosure capability.

Buffer Overflow Denial Of Service Ac6 Firmware +1
NVD GitHub
EPSS 0% CVSS 8.8
HIGH This Week

CVE-2025-49199 is a security vulnerability (CVSS 8.8) that allows the attacker. High severity vulnerability requiring prompt remediation.

Information Disclosure Authentication Bypass Denial Of Service +1
NVD
EPSS 0% CVSS 8.6
HIGH This Week

CVE-2025-49181 is an authorization bypass vulnerability in an unspecified API endpoint that allows unauthenticated remote attackers to read sensitive information via HTTP GET requests and modify service configuration (log paths, TCP ports) via HTTP POST requests, potentially causing denial of service. With a CVSS score of 8.6 and network-accessible attack vector requiring no authentication, this vulnerability presents a significant risk to exposed instances; KEV/EPSS/POC status cannot be confirmed from provided data, warranting immediate investigation of affected infrastructure.

Denial Of Service Authentication Bypass Information Disclosure +1
NVD
EPSS 1% 5.0 CVSS 7.5
HIGH POC PATCH Act Now

Stack-based buffer overflow in libxml2's xmlBuildQName function allows remote unauthenticated attackers to crash affected systems via crafted XML input. The vulnerability affects libxml2 directly and downstream Red Hat products including OpenShift Container Platform 4.12-4.19, RHEL 7-10, and JBoss Core Services. With CVSS 7.5 (AV:N/AC:L/PR:N/UI:N), EPSS 0.75% (73rd percentile), and publicly available exploit code, this represents a moderate real-world risk focused on availability disruption rather than code execution or data compromise.

Buffer Overflow Denial Of Service Integer Overflow +20
NVD
EPSS 0% CVSS 7.5
HIGH POC PATCH This Week

A denial of service vulnerability in GitLab CE/EE affecting all (CVSS 7.5) that allows an attacker. Risk factors: public PoC available.

Gitlab Denial Of Service Open Redirect
NVD
EPSS 0% CVSS 6.5
MEDIUM POC PATCH This Month

An issue has been discovered in GitLab CE/EE affecting all versions from 2.1.0 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. A lack of input validation in HTTP responses could allow an authenticated user to cause denial of service.

Gitlab Denial Of Service Ubuntu +1
NVD
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

An issue has been discovered in GitLab CE/EE affecting all versions from 8.7 before 17.10.8, 17.11 before 17.11.4, and 18.0 before 18.0.2. Improper input validation in Tokens Names could be used to trigger a denial of service.

Gitlab Denial Of Service Ubuntu +1
NVD
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

An issue has been discovered in GitLab CE/EE affecting all versions from 8.13 before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. A lack of input validation in Board Names could be used to trigger a denial of service.

Gitlab Denial Of Service Ubuntu +1
NVD
EPSS 0% CVSS 7.5
HIGH This Week

A remote code execution vulnerability (CVSS 7.5) that allows an authenticated user. High severity vulnerability requiring prompt remediation.

Denial Of Service IBM Cognos Analytics
NVD
EPSS 0% CVSS 2.8
LOW PATCH Monitor

Null pointer exception vulnerabilities were reported in the fingerprint sensor service that could allow a local attacker to cause a denial of service.

Null Pointer Dereference Denial Of Service
NVD
EPSS 0% CVSS 6.5
MEDIUM PATCH This Month

Allocation of Resources Without Limits or Throttling vulnerability in Drupal Admin Audit Trail allows Excessive Allocation.This issue affects Admin Audit Trail: from 0.0.0 before 1.0.5.

Denial Of Service Admin Audit Trail Drupal
NVD
EPSS 0% CVSS 2.1
LOW PATCH Monitor

There is a "Use After Free" vulnerability in Qt's QHttp2ProtocolHandler in the QtNetwork module. This only affects HTTP/2 handling, HTTP handling is not affected by this at all. This happens due to a race condition between how QHttp2Stream uploads the body of a POST request and the simultaneous handling of HTTP error responses. This issue only affects Qt 6.9.0 and has been fixed for Qt 6.9.1.

Use After Free Denial Of Service Memory Corruption +2
NVD
EPSS 0% CVSS 5.6
MEDIUM PATCH This Month

A vulnerability in the K7RKScan.sys driver, part of the K7 Security Anti-Malware suite, allows a local low-privilege user to send crafted IOCTL requests to terminate a wide range of processes running with administrative or system-level privileges, with the exception of those inherently protected by the operating system. This flaw stems from missing access control in the driver's IOCTL handler, enabling unprivileged users to perform privileged actions in kernel space. Successful exploitation can lead to denial of service by disrupting critical services or privileged applications.

Denial Of Service Authentication Bypass
NVD
EPSS 0% CVSS 8.8
HIGH PATCH This Week

A privilege escalation vulnerability in Apache CloudStack (CVSS 8.8) that allows the attacker. High severity vulnerability requiring prompt remediation.

Apache Privilege Escalation Denial Of Service +2
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

Acrobat Reader versions 24.001.30235, 20.005.30763, 25.001.20521 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing a disruption in service. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Null Pointer Dereference Adobe Denial Of Service +4
NVD
EPSS 0% CVSS 7.8
HIGH This Week

A remote code execution vulnerability (CVSS 7.8). High severity vulnerability requiring prompt remediation.

RCE Adobe Denial Of Service +4
NVD
EPSS 0% CVSS 8.3
HIGH This Week

CVE-2025-0052 is an improper input validation vulnerability in Pure Storage FlashBlade's authentication process that allows unauthenticated network attackers to trigger a denial of service condition with high availability impact. While the CVSS score of 8.3 reflects significant availability risk, the high attack complexity (AC:H) suggests practical exploitation requires specific conditions. No confirmed KEV/CISA status, active exploitation, or public POC has been disclosed at the time of analysis.

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

Improper input validation vulnerability in Pure Storage FlashArray's authentication process that enables unauthenticated network-based denial of service attacks. The vulnerability allows remote attackers without credentials to crash or degrade the availability of affected FlashArray systems by sending malformed authentication requests. This is a high-severity issue (CVSS 8.7) with network accessibility and no authentication requirements, making it broadly exploitable across internet-exposed or network-accessible FlashArray deployments.

Denial Of Service
NVD
EPSS 0% CVSS 8.4
HIGH PATCH This Week

A security vulnerability in Use after free in Microsoft Office (CVSS 8.4) that allows an unauthorized attacker. High severity vulnerability requiring prompt remediation.

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

Use-after-free vulnerability in Microsoft Office PowerPoint that allows an unauthenticated local attacker to execute arbitrary code with high integrity and confidentiality impact. The vulnerability requires user interaction (opening a malicious PowerPoint file) but no elevated privileges, making it accessible to standard user accounts. With a CVSS score of 7.8 and local attack vector, this represents a moderate-to-high severity risk for organizations where PowerPoint is widely deployed.

Microsoft Denial Of Service Office +3
NVD Exploit-DB
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use-after-free vulnerability in Microsoft Office Word that allows local, unauthenticated attackers to execute arbitrary code with high impact (confidentiality, integrity, availability). The vulnerability requires user interaction (e.g., opening a malicious document) but has low attack complexity, making it a significant local code execution threat. Without confirmed KEV status or EPSS data provided, the CVSS 7.8 score indicates high severity, though real-world exploitability depends on whether public exploits or proofs-of-concept have emerged.

Microsoft Denial Of Service 365 Apps +1
NVD
EPSS 0% CVSS 8.4
HIGH PATCH This Week

Use-after-free (UAF) vulnerability in Microsoft Office that allows unauthenticated local attackers to execute arbitrary code with no user interaction required. The vulnerability affects multiple Microsoft Office versions and has a CVSS score of 8.4 (High), indicating severe risk with high impact to confidentiality, integrity, and availability. Without publicly disclosed EPSS data or KEV confirmation provided, the actual exploitation likelihood in the wild remains unconfirmed, though the local attack vector and lack of privilege/interaction requirements suggest moderate real-world exploitability once weaponized.

Use After Free Microsoft Denial Of Service +1
NVD VulDB
EPSS 0% CVSS 5.5
MEDIUM This Month

InDesign Desktop versions ID20.2, ID19.5.3 and earlier are affected by a Use After Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Use After Free Denial Of Service Memory Corruption +1
NVD
EPSS 27% CVSS 7.5
HIGH PATCH Act Now

Windows Standards-Based Storage Management Service contains an uncontrolled resource consumption vulnerability allowing unauthenticated network attackers to cause denial of service. The service manages storage operations and its disruption affects storage provisioning and management on Windows servers.

Microsoft Denial Of Service Windows +5
NVD
EPSS 2% CVSS 6.5
MEDIUM PATCH This Month

Null pointer dereference in Windows Local Security Authority (LSA) allows an authorized attacker to deny service over a network.

Microsoft Null Pointer Dereference Denial Of Service +16
NVD
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Network-accessible denial-of-service vulnerability in Microsoft's Local Security Authority Server (lsasrv) caused by improper access control (CWE-284). An unauthenticated remote attacker can exploit this with low complexity to render the LSA service unavailable, affecting authentication and security policy enforcement on affected Windows systems. The CVSS 7.5 severity reflects the high availability impact; however, real-world risk depends on EPSS score, KEV candidacy status, and active exploitation data not provided in the source materials.

Microsoft Windows Denial Of Service +15
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

Protection mechanism failure in Windows DHCP Server that enables network-based denial-of-service attacks without requiring authentication or user interaction. An attacker can remotely exploit this vulnerability to render DHCP services unavailable, disrupting network connectivity for affected systems. The high CVSS score of 7.5 and network attack vector indicate significant availability impact, though no confidentiality or integrity compromise occurs.

Microsoft Windows Dhcp +6
NVD
EPSS 2% CVSS 7.5
HIGH PATCH This Week

Network-accessible denial-of-service vulnerability in Windows DHCP Server caused by a protection mechanism failure (CWE-693), allowing unauthenticated attackers to exhaust server availability without requiring authentication or user interaction. The vulnerability affects Windows DHCP Server implementations across multiple versions and has a CVSS severity of 7.5 (High). While the description does not explicitly reference KEV inclusion, active exploitation status, or EPSS data, the low attack complexity (AC:L) and network accessibility (AV:N) combined with no authentication requirements indicate this represents a credible denial-of-service threat to DHCP infrastructure.

Microsoft Windows Dhcp +6
NVD
EPSS 0% CVSS 5.5
MEDIUM This Month

InDesign Desktop versions ID20.2, ID19.5.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to application denial-of-service. An attacker could exploit this vulnerability to crash the application, causing disruption in service. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

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

Denial-of-service vulnerability in GeoServer that allows unauthenticated remote attackers to execute malicious Jiffle scripts, causing infinite loops and service unavailability. Affected versions are GeoServer prior to 2.25.7, 2.26.3, and 2.27.0. The vulnerability is triggered through WMS dynamic styling or WPS processes and requires no authentication or user interaction, making it easily exploitable by remote attackers.

Denial Of Service Geoserver
NVD GitHub
EPSS 0% CVSS 6.5
MEDIUM This Month

CWE-20: Improper Input Validation vulnerability exists that could cause Denial of Service when an authenticated malicious user sends HTTPS request containing invalid data type to the webserver.

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

CWE-20: Improper Input Validation vulnerability exists that could cause Denial of Service when an authenticated malicious user sends special malformed HTTPS request containing improper formatted body data to the controller.

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

CWE-400: Uncontrolled Resource Consumption vulnerability exists that could cause Denial of Service when an authenticated malicious user sends manipulated HTTPS Content-Length header to the webserver.

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

A remote code execution vulnerability (CVSS 7.5). High severity vulnerability requiring prompt remediation.

Denial Of Service Apache Java +5
NVD GitHub HeroDevs
EPSS 0% CVSS 5.3
MEDIUM POC PATCH This Month

A vulnerability was found in Open5GS up to 2.7.3. It has been declared as problematic. Affected by this vulnerability is the function common_register_state of the file src/mme/emm-sm.c of the component AMF/MME. The manipulation of the argument ran_ue_id leads to denial of service. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is 62cb99755243c9c38e4c060c5d8d0e158fe8cdd5. It is recommended to apply a patch to fix this issue.

Denial Of Service Debian Open5gs
NVD GitHub VulDB
EPSS 0% CVSS 7.5
HIGH This Week

Denial-of-service vulnerability in SAP MDM Server's Read function that allows unauthenticated network attackers to trigger memory read access violations by sending specially crafted packets, causing the server process to crash and become unavailable. The vulnerability affects SAP MDM Server with a CVSS score of 7.5 (high severity) but is limited to availability impact with no confidentiality or integrity compromise. Status of active exploitation (KEV) and proof-of-concept availability are not specified in available intelligence.

SAP Denial Of Service Memory Corruption
NVD
EPSS 0% CVSS 7.5
HIGH This Week

Denial-of-service vulnerability in SAP MDM Server's ReadString function that allows unauthenticated remote attackers to trigger memory read access violations causing unexpected server process termination. The vulnerability affects SAP Master Data Management (MDM) Server and has a CVSS score of 7.5 with high availability impact; no confidentiality or integrity compromise occurs. This is a network-accessible denial-of-service vector with low attack complexity and no authentication requirements, making it a significant availability risk for organizations deploying SAP MDM infrastructure.

SAP Denial Of Service Memory Corruption
NVD
EPSS 0% CVSS 8.5
HIGH This Week

High-severity authentication bypass vulnerability in SAP Business Warehouse and SAP Plug-In Basis that allows authenticated attackers to drop arbitrary database tables, resulting in data loss or system unavailability. The vulnerability requires valid credentials but no user interaction, affecting systems across the network with a CVSS score of 8.5. While integrity impact is limited (attacker cannot read data), availability impact is severe, making this a critical integrity and availability threat for SAP deployments.

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

Pion Interceptor versions v0.1.36 through v0.1.38 contain a denial-of-service vulnerability in the RTP packet factory that allows unauthenticated remote attackers to trigger application panics via crafted RTP packets with malformed padding fields. This affects all applications using the Pion interceptor library for RTP/RTCP communication, with no authentication required and low attack complexity. The vulnerability has a CVSS score of 7.5 (High) with availability impact only; no evidence of active exploitation or public POC availability is documented.

Denial Of Service Golang Suse
NVD GitHub
EPSS 0% CVSS 4.3
MEDIUM POC This Month

A vulnerability was found in vuejs vue-cli up to 5.0.8. It has been rated as problematic. This issue affects the function HtmlPwaPlugin of the file packages/@vue/cli-plugin-pwa/lib/HtmlPwaPlugin.js of the component Markdown Code Handler. The manipulation leads to inefficient regular expression complexity. The attack may be initiated remotely.

Denial Of Service Vue Cli
NVD GitHub VulDB
EPSS 0% CVSS 4.3
MEDIUM POC PATCH This Month

A vulnerability was found in tarojs taro up to 4.1.1. It has been declared as problematic. This vulnerability affects unknown code of the file taro/packages/css-to-react-native/src/index.js. The manipulation leads to inefficient regular expression complexity. The attack can be initiated remotely. Upgrading to version 4.1.2 is able to address this issue. The name of the patch is c2e321a8b6fc873427c466c69f41ed0b5e8814bf. It is recommended to upgrade the affected component.

Denial Of Service Taro
NVD GitHub VulDB
EPSS 0% CVSS 6.6
MEDIUM PATCH This Month

A vulnerability has been identified in the libarchive library. This flaw can lead to a heap buffer over-read due to the size of a filter block potentially exceeding the Lempel-Ziv-Storer-Schieber (LZSS) window. This means the library may attempt to read beyond the allocated memory buffer, which can result in unpredictable program behavior, crashes (denial of service), or the disclosure of sensitive information from adjacent memory regions.

Buffer Overflow Heap Overflow Denial Of Service +3
NVD GitHub
EPSS 0% CVSS 2.1
LOW POC PATCH Monitor

We are asked to synthesize data from multiple intelligence sources about CVE-2025-5895. The input includes description, CVSS score, CWE, EPSS, POC, patch, CPE, tags, and references. The task is to produce a comprehensive JSON object with fields as specified. We must use all data provided, cross-reference, and write each field as a plain text string (paragraph). The output should be original synthesis, not copy-paste. Let's analyze the data: - CVE ID: CVE-2025-5895 - Description: "A vulnerability was found in Metabase 54.10. It has been classified as problematic. This affects the function parseDataUri of the file frontend/src/metabase/lib/dom.js. The manipulation leads to inefficient regular expression complexity. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The patch is named 4454ebbdc7719016bf80ca0f34859ce5cee9f6b0. It is recommended to apply a patch to fix this issue." - CVSS Score: 2.1 (base score? Likely CVSS 4.0 base score 2.1, from the given vector) - CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CWE: CWE-400 (Uncontrolled Resource Consumption) - EPSS Score: 0.17% (percentile 38%) - POC/Exploit: Publicly available - Patch: Available from vendor - Reported by: cna@vuldb.com - CPE: cpe:2.3:a:metabase:metabase:0.54.10:*:*:*:-:*:*:* - Tags: Denial Of Service - References: multiple, including patch commit, exploit PR, vuldb links. - Source code evidence: A commit diff showing regex change in parseDataUri function and a test file that includes a test for a malicious DOS input. From the description, it's an inefficient regex complexity (ReDoS) in parseDataUri. The patch replaces a vulnerable regex with a fixed one. The test shows a malicious input that previously caused a hang/crash, now returns null within timeout. Now, produce the JSON fields: 1. product_name: "Metabase" (just the product name, 1-3 words) 2. summary: 2-3 sentence plain-language summary, not copying description. Start with impact verb and product. So: "Denial of service in Metabase 0.54.10 allows..." - Summary: The vulnerability is a ReDoS in the parseDataUri function of Metabase's frontend JavaScript, which can be triggered remotely by an attacker sending a crafted data URI. An attacker can cause a denial of service by making the application unresponsive due to catastrophic backtracking in the regular expression. Although a proof-of-concept exploit is publicly available, there is no evidence of active exploitation in the wild; the EPSS score is low at 0.17%. The issue is patched by the Metabase team. - Ensure to note: affected product/version, what attacker can do, actively exploited? (not KEV, so not actively exploited), POC exists. EPSS risk is low. So summary: "Denial of service in Metabase 0.54.10 allows remote attackers to cause a denial of service via a maliciously crafted data URI that triggers inefficient regular expression backtracking in the client-side parseDataUri function. The vulnerability has a low EPSS exploitation probability (0.17%) and no known active exploitation, although a proof-of-concept exploit is publicly available. The issue has been patched by Metabase." - Avoid starting with "A vulnerability..." - start with "Denial of service in Metabase..." 3. technical_context: Explain underlying technology/library/protocol, CPE, CWE. It's a client-side JavaScript ReDoS in the frontend. The parseDataUri function parses data URIs, a URI scheme for embedding data inline. The vulnerable regex pattern could cause catastrophic backtracking on certain inputs, leading to excessive CPU consumption. CWE-400 Uncontrolled Resource Consumption aligns. Affected product from CPE is Metabase 0.54.10 (note the CPE says 0.54.10, the description says 54.10, likely consistent). So write: "Metabase is an open-source business intelligence tool. The vulnerability lies in the parseDataUri function within the frontend JavaScript code (file frontend/src/metabase/lib/dom.js). The function uses a regular expression to parse data URIs (RFC 2397). The regex pattern /^data:(?:([^;]+)(?:;([^;]+))?)?(;base64)?,(.*)$/ is susceptible to ReDoS due to the greedy capturing group at the end, which can cause catastrophic backtracking when processing a long string with many repeated characters followed by a newline. This results in uncontrolled resource consumption (CWE-400). The vulnerability was introduced in or affects version 0.54.10, as indicated by CPE: cpe:2.3:a:metabase:metabase:0.54.10:*:*:*:-:*:*:*." 4. risk_assessment: Use CVSS vector, EPSS, POC, KEV. CVSS 4.0 vector: AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N means network attack vector, low complexity, no attack requirements, low privileges required (PR:L), no user interaction, no impact on confidentiality/integrity, low availability impact on vulnerable system, no scope change. The base score is 2.1 (low). EPSS 0.17% (38th percentile) indicates low likelihood of exploitation. No KEV listing, so no active exploitation. POC exist publicly. So risk is low, mainly a client-side DoS with authenticated user needed to trigger it (PR:L suggests low privileges, e.g., any authenticated user). But PR:L could mean an attacker needs to be authenticated to the Metabase instance? The vector says PR:L (privileges required low). So the attack requires an authenticated user to craft a malicious data URI? Possibly via injecting a malicious URI in a context where Metabase parses it. CVSS 4.0 vector also includes E:P (exploit public). So the risk assessment should say: CVSS indicates low overall risk, primarily low availability impact. EPSS also low. No active exploitation. Patch available. So risk is minimal if patch applied. But mention that the authentication requirement limits exposure. Contrast signals: CVSS low, EPSS low, but POC exists. So it's a low-priority vulnerability, fix during normal patch cycles. 5. affected_products: Write a concise paragraph. Include product name, version range (Metabase 0.54.10), CPE, link to vendor advisory (references include github commit and pull request, and vuldb pages). So: "Metabase version 0.54.10 (CPE: cpe:2.3:a:metabase:metabase:0.54.10:*:*:*:-:*:*:*) is affected. The vendor advisory is available at the Metabase GitHub repository via commit 4454ebbdc7719016bf80ca0f34859ce5cee9f6b0 and pull request #57011." 6. remediation: Actionable remediation steps. The patch is available from vendor. So: "Upgrade to a patched version or apply the fix from commit 4454ebbdc7719016bf80ca0f34859ce5cee9f6b0. The exact fixed version is not specified in the advisory, but the commit message suggests the fix is included in the repository; users should update to the latest release of Metabase that includes this commit. Alternatively, restrict access to the Metabase application to trusted users, as exploitation requires authentication. No public workarounds are available; applying the patch is the primary mitigation." Note: patch data says "Available from vendor" but no specific version. So mention patch commit, recommend upgrading to latest. If no patch, but there's a commit. 7. exploit_scenario: Brief realistic attack scenario. An attacker with low-level authenticated access to Metabase (e.g., a user allowed to create or edit dashboards, cards, or queries) could craft a data URI with a specially crafted payload, such as a long string of null characters followed by a newline, and inject it into a field that triggers the parseDataUri function. This causes the server's front-end rendering to hang or crash due to excessive CPU consumption, degrading availability for other users. The proof-of-concept demonstrates such an attack. 8. exploitation_conditions: CRITICAL field. Specific prerequisites. From description: function parseDataUri. The regex vulnerability is in the client-side, so an attacker needs to supply input that gets processed by this function. The CVSS vector says PR:L (low privileges required), so the attacker must be an authenticated user with low privileges (e.g., a Metabase user). The attack vector is network, so remote. No user interaction required (UI:N). The attacker likely needs to send a request that includes a data URI parsed by the frontend. The test case uses a malicious data URI string. So condition: "Exploitation requires an authenticated user (low privileges) to supply a maliciously crafted data URI that is processed by the parseDataUri function in the Metabase frontend. The vulnerability does not require any user interaction and can be triggered remotely over the network. No special configuration is needed beyond default Metabase deployment." Avoid generic phrases, so we state: "Authentication with low privileges (PR:L) is required to submit a crafted data URI to the parseDataUri function. No user interaction needed; remote network access sufficient." and also note that it is limited to availability impact only. 9. attack_chain: 3-7 short steps separated by →. Phases: Access → Exploit → Impact. With PR:L, it's an authenticated step. So: "Authenticate to Metabase as low-privilege user → Inject crafted data URI payload into input field → parseDataUri function processes malicious regex input → Catastrophic backtracking exhausts CPU → Application becomes unresponsive or crashes". That's 5 steps. Could condense: "Authenticate with low privileges → Send request containing crafted data URI → Trigger ReDoS in parseDataUri regex → Denial of service". 10. confidence_notes: Data completeness and confidence. We have vendor patch and commit, confirmed by GitHub. CVE description from VulDB confirmed. CVSS 4.0 vector from NVD? The vector is given in the input. EPSS score available. POC publicly available. No KEV. So: "The vulnerability is confirmed by the vendor (Metabase) and patched via a public commit. The CVSS 4.0 vector is provided by VulDB; its metrics are consistent with the description. Active exploitation is not confirmed; POC is publicly available. The exact release version incorporating the fix is not explicitly stated, but the commit is from the Metabase repository and expected in subsequent releases." 11. prevalence: Estimate deployment footprint. Metabase is a popular open-source business intelligence tool, used by many organizations for dashboards and analytics. It's widely deployed, but not as ubiquitous as Linux kernel or nginx. So "high" might be appropriate, but it's an open-source tool with a large user base. Alternatively "high" or "medium". I'd say "high" because it's common enterprise software. Prevalence: "high". Basis: "popular open-source BI tool". 12. prevalence_basis: Justify: "widely deployed enterprise BI tool" 13. assessed_cvss_vector: We need to generate our own CVSS 3.1 vector consistent with the information. The given vector is CVSS 4.0. Convert to 3.1? Or should we produce a 3.1 vector? The instructions say: "assessed_cvss_vector": Your OWN independent CVSS 3.1 base-metric vector. So we need to map CVSS 4.0 to 3.1 or re-evaluate. Given the description: It's a remote attack, low complexity, requires authentication? The 4.0 vector says PR:L. In 3.1, that would be AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L (availability low, scope unchanged). That yields score: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L. Let's compute base score: 4.0? Actually, 3.1: AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Denial Of Service Metabase
NVD GitHub VulDB
EPSS 0% CVSS 2.1
LOW POC Monitor

Inefficient regular expression in RocketChat's IRC parseMessage function allows remote authenticated users to cause a denial of service via crafted input. A publicly available exploit exists, but no active exploitation has been reported. EPSS score is low (0.22%), indicating low exploitation likelihood.

Denial Of Service Rocket Chat
NVD GitHub VulDB
EPSS 0% CVSS 2.1
LOW POC PATCH Monitor

Inefficient regular expression complexity in Unitech pm2 up to 6.0.6 allows remote attackers to cause a denial of service via crafted input to the Config.js file. A publicly available exploit exists, but no active exploitation has been confirmed. EPSS score is low (0.12%), indicating limited exploitation likelihood.

Denial Of Service Pm2
NVD GitHub VulDB
EPSS 0% CVSS 4.3
MEDIUM This Month

A vulnerability classified as problematic has been found in actions toolkit 0.5.0. This affects the function globEscape of the file toolkit/packages/glob/src/internal-pattern.ts of the component glob. The manipulation leads to inefficient regular expression complexity. It is possible to initiate the attack remotely.

Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 1.3
LOW PATCH Monitor

Inefficient regular expression complexity in brace-expansion up to versions 1.1.11/2.0.1/3.0.0/4.0.0 allows remote attackers to cause a denial of service via a crafted brace pattern. The vulnerability is publicly known with a proof of concept, but exploitation is difficult due to high attack complexity and low EPSS score (0.03%). No active exploitation in the wild has been reported.

Denial Of Service
NVD GitHub VulDB
EPSS 0% CVSS 8.0
HIGH POC This Week

Critical null pointer dereference vulnerability in RT-Thread 5.1.0's lwp_syscall.c csys_sendto function, allowing authenticated local attackers to cause denial of service and potentially achieve code execution with high integrity impact. The vulnerability requires local access and valid credentials but exploits a memory safety flaw in a core system call handler that could be leveraged for privilege escalation or system instability in embedded/IoT deployments running RT-Thread.

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

A flaw exists in the nbdkit "blocksize" filter that can be triggered by a specific type of client request. When a client requests block status information for a very large data range, exceeding a certain limit, it causes an internal error in the nbdkit, leading to a denial of service.

Denial Of Service Integer Overflow Nbdkit
NVD
EPSS 0% CVSS 5.7
MEDIUM PATCH This Month

A Developer persona can bring down the Authorino service, preventing the evaluation of all AuthPolicies on the cluster

Denial Of Service Red Hat Suse
NVD GitHub
EPSS 0% CVSS 5.7
MEDIUM PATCH This Month

The Authorino service in the Red Hat Connectivity Link is the authorization service for zero trust API security. Authorino allows the users with developer persona to add callbacks to be executed to HTTP endpoints once the authorization process is completed. It was found that an attacker with developer persona access can add a large number of those callbacks to be executed by Authorino and as the authentication policy is enforced by a single instance of the service, this leada to a Denial of Service in Authorino while processing the post-authorization callbacks.

Red Hat Denial Of Service Suse
NVD GitHub
EPSS 0% CVSS 3.3
LOW Monitor

in OpenHarmony v5.0.3 and prior versions allow a local attacker case DOS through NULL pointer dereference.

Null Pointer Dereference Denial Of Service
NVD
EPSS 0% CVSS 3.3
LOW Monitor

in OpenHarmony v5.0.3 and prior versions allow a local attacker cause apps crash through type confusion.

Denial Of Service Memory Corruption
NVD
EPSS 0% CVSS 3.3
LOW Monitor

in OpenHarmony v5.0.3 and prior versions allow a local attacker cause apps crash through type confusion.

Denial Of Service Memory Corruption
NVD
EPSS 0% CVSS 7.1
HIGH PATCH This Week

A race condition vulnerability exists in the Linux kernel's CAN broadcast manager (BCM) module where concurrent updates to the 'currframe' counter from both user space and hrtimer interrupt context can trigger a slab-out-of-bounds read. This affects local authenticated users who can trigger the vulnerability through CAN frame sequence manipulation; a proof-of-concept has been demonstrated by Anderson Nascimento, making this a real and reproducible issue with CVSS 7.1 severity affecting confidentiality and availability.

Linux Denial Of Service Race Condition +5
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

A denial of service vulnerability in versions (CVSS 7.5). High severity vulnerability requiring prompt remediation. Vendor patch is available.

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

NULL pointer dereference vulnerability in QNAP File Station 5 that allows authenticated remote attackers to trigger a denial-of-service condition by causing the application to crash. While the CVSS 7.5 score reflects the severity of availability impact, the vulnerability requires valid user credentials to exploit, making it primarily a risk for organizations with compromised or malicious insider accounts. The vendor has released patches in version 5.5.6.4847 and later.

Null Pointer Dereference Denial Of Service Qnap +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

NULL pointer dereference vulnerability in QNAP File Station 5 that allows authenticated remote attackers to trigger a denial-of-service condition by crashing the application. While the CVSS score of 7.5 is elevated, the requirement for a valid user account (PR:N is misleading in vector; effective privilege requirement exists) and lack of data confidentiality/integrity impact limit real-world severity. The vulnerability affects File Station 5 versions prior to 5.5.6.4847, and the vendor has released patched versions.

Null Pointer Dereference Denial Of Service Qnap +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

NULL pointer dereference vulnerability affecting QNAP File Station 5 that allows authenticated remote attackers to trigger a denial-of-service condition by crashing the application. The vulnerability has a CVSS score of 7.5 (High) due to its network accessibility and high availability impact, though it requires valid user credentials to exploit. QNAP has released patched versions (5.5.6.4847 and later) to remediate this issue.

Null Pointer Dereference Denial Of Service Qnap +1
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

Denial-of-service vulnerability in QNAP File Station 5 that allows an authenticated attacker to exhaust system resources without limits or throttling, preventing legitimate users and processes from accessing the affected service. The vulnerability affects File Station 5 versions prior to 5.5.6.4847 and is remotely exploitable with no user interaction required once account access is obtained. With a CVSS score of 7.5 (High) and network-based attack vector, this represents a significant availability risk for organizations relying on File Station for network file access.

Denial Of Service Synology File Station
NVD
EPSS 0% CVSS 7.5
HIGH PATCH This Week

NULL pointer dereference vulnerability in QNAP File Station 5 that allows authenticated remote attackers to trigger a denial-of-service condition by crashing the application. The vulnerability affects File Station 5 versions prior to 5.5.6.4847, and while it requires valid user credentials (PR:N indicates no privileges required once authenticated), it has a CVSS score of 7.5 reflecting high availability impact. No indication of active exploitation in the wild or public POC is evident from the provided data.

Null Pointer Dereference Denial Of Service Qnap +1
NVD
EPSS 0% CVSS 7.1
HIGH PATCH This Week

CVE-2025-22484 is an unthrottled resource allocation vulnerability in Qnap File Station 5 that allows authenticated remote attackers to exhaust system resources and cause denial of service. An attacker with valid user credentials can exploit this CWE-770 weakness to prevent legitimate users and processes from accessing shared resources, affecting availability. The vulnerability has a moderate-to-high CVSS 7.1 score driven by network accessibility and high availability impact, though it requires prior authentication; the fix is available in File Station 5 version 5.5.6.4847 and later.

Denial Of Service Qnap
NVD
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Address reentrant enqueue adding class to eltree twice Savino says: "We are writing to report that this recent patch (141d34391abbb315d68556b7c67ad97885407547) [1] can be bypassed, and a UAF can still occur when HFSC is utilized with NETEM. The patch only checks the cl->cl_nactive field to determine whether it is the first insertion or not [2], but this field is only incremented by init_vf [3]. By using HFSC_RSC (which uses init_ed) [4], it is possible to bypass the check and insert the class twice in the eltree. Under normal conditions, this would lead to an infinite loop in hfsc_dequeue for the reasons we already explained in this report [5]. However, if TBF is added as root qdisc and it is configured with a very low rate, it can be utilized to prevent packets from being dequeued. This behavior can be exploited to perform subsequent insertions in the HFSC eltree and cause a UAF." To fix both the UAF and the infinite loop, with netem as an hfsc child, check explicitly in hfsc_enqueue whether the class is already in the eltree whenever the HFSC_RSC flag is set. [1] https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=141d34391abbb315d68556b7c67ad97885407547 [2] https://elixir.bootlin.com/linux/v6.15-rc5/source/net/sched/sch_hfsc.c#L1572 [3] https://elixir.bootlin.com/linux/v6.15-rc5/source/net/sched/sch_hfsc.c#L677 [4] https://elixir.bootlin.com/linux/v6.15-rc5/source/net/sched/sch_hfsc.c#L1574 [5] https://lore.kernel.org/netdev/8DuRWwfqjoRDLDmBMlIfbrsZg9Gx50DHJc1ilxsEBNe2D6NMoigR_eIRIG0LOjMc3r10nUUZtArXx4oZBIdUfZQrwjcQhdinnMis_0G7VEk=@willsroot.io/T/#u

Denial Of Service Linux Ubuntu +5
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Use-after-free vulnerability in the Linux kernel's HFSC (Hierarchical Fair Service Curve) queue discipline scheduler that occurs when enqueuing packets triggers a peek operation on child qdiscs before queue accounting is updated. Local attackers with unprivileged user privileges can exploit this to cause denial of service or potentially execute code with kernel privileges. The vulnerability affects Linux kernel versions with the vulnerable HFSC implementation and has a CVSS score of 7.8 (high severity) with local attack vector requirements.

Use After Free Linux Denial Of Service +4
NVD
EPSS 0% CVSS 8.3
HIGH PATCH This Week

A remote code execution vulnerability in IDF (CVSS 8.3). High severity vulnerability requiring prompt remediation.

Denial Of Service TLS IoT
NVD
EPSS 0% CVSS 8.7
HIGH PATCH This Week

CVE-2025-41360 is an uncontrolled resource consumption vulnerability affecting IDF v0.10.0-0C03-03 and ZLF v0.10.0-0C03-04 that enables remote denial of service through packet flooding attacks. The vulnerability allows unauthenticated network attackers to exhaust device resources with minimal complexity, resulting in service unavailability. The high CVSS score of 8.7 reflects the critical availability impact, though exploitation requires network access and no privilege escalation is possible.

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

CVE-2025-48906 is an authentication bypass vulnerability in the DSoftBus module that allows unauthenticated attackers on the local network to completely compromise system confidentiality, integrity, and availability without user interaction. The vulnerability affects DSoftBus implementations across multiple platforms with a CVSS score of 8.8, indicating critical severity with high exploitability potential on adjacent networks.

Authentication Bypass Denial Of Service Harmonyos
NVD
EPSS 0% CVSS 4.0
MEDIUM This Month

Resource allocation control failure vulnerability in the ArkUI framework Impact: Successful exploitation of this vulnerability may affect availability.

Denial Of Service Harmonyos
NVD
EPSS 0% CVSS 4.3
MEDIUM This Month

IBM Verify Identity Access Digital Credentials 24.06 could allow an authenticated user to crash the service with a specially crafted POST request.

Denial Of Service IBM Verify Identity Access Digital Credentials
NVD
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MEDIUM
Category
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Total CVEs
36916

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