Denial of Service

FreeRDP clients before version 3.24.2 crash with SIGABRT when connecting through a malicious RDP Gateway due to an unvalidated auth_length field triggering a WINPR_ASSERT() failure in rts_read_auth_verifier_no_checks(). This pre-authentication denial of service affects all FreeRDP clients using RPC-over-HTTP gateway transport, regardless of user authentication status. The vulnerability has been patched in version 3.24.2.

Denial of service in FreeRDP prior to version 3.24.2 allows remote attackers to crash the client via a malicious RDP server sending IMA ADPCM audio data with an invalid step index value (≥89). The unvalidated network-supplied index causes an out-of-bounds access into an 89-entry lookup table, triggering a WINPR_ASSERT() failure and process abort. This affects all FreeRDP clients with audio redirection enabled (the default configuration), requiring user interaction to establish an RDP connection but no authentication. No public exploit code identified at time of analysis.

Remote denial of service in NanoMQ MQTT Broker 0.24.6 allows unauthenticated remote attackers to crash the broker by connecting without credentials when HTTP authentication is enabled with username/password placeholders, triggering a null pointer dereference in the auth_http.c module. The vulnerability requires high attack complexity (user interaction via specific MQTT CONNECT configuration) but results in broker unavailability. Vendor-released patch version 0.24.7 addresses the issue.

Uncaught TypeError in Node.js HTTP server crashes applications when clients send specially crafted `__proto__` headers and code accesses `req.headersDistinct`. The exception occurs synchronously in a property getter, bypassing standard error handling mechanisms and causing immediate service disruption. Affects Node.js versions 20.x, 22.x, 24.x, and 25.x with CVSS 7.5 (High). EPSS data not available; no public exploit identified at time of analysis, though exploitation requires only sending a malformed HTTP header with no authentication (CVSS:3.0/AV:N/AC:L/PR:N/UI:N).

Maliciously crafted `.idx` files in go-git v5 cause asymmetric memory consumption leading to Denial of Service through integer overflow vulnerabilities. Exploitation requires local write access to the `.git` directory, limiting attack surface to scenarios where an attacker has already compromised repository access or can inject files into a shared repository. No public exploit code or active exploitation has been confirmed; however, the low CVSS complexity and requirement for only low-privilege local access make this a moderate operational concern for development environments and CI/CD systems that process untrusted repositories.

Remote denial of service in GNU C Library (glibc) 2.43 and earlier allows unauthenticated remote attackers to crash applications via malformed input during character set conversion from IBM1390 or IBM1399 encodings. The vulnerability triggers an assertion failure in the iconv() function with high attack reliability (CVSS 7.5, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Proof-of-concept code exists and CISA SSVC assessment confirms the issue is automatable with partial technical impact, making this a practical denial-of-service vector for any networked application processing untrusted character encoding conversions.

Authenticated denial of service in nginx-ui 2.3.3 and earlier allows any user with settings access to submit a negative integer for the logrotate.interval parameter, triggering an infinite loop in the backend that exhausts CPU resources and renders the web interface unresponsive. Vendor-released patch available in v2.3.4. No public exploit code identified beyond proof-of-concept documentation; not confirmed as actively exploited.

Race condition in nginx-ui web interface allows remote authenticated attackers to corrupt the primary configuration file (app.ini) through concurrent API requests, resulting in persistent denial of service and potential remote code execution. The vulnerability affects nginx-ui versions prior to 2.3.4 deployed in production environments including Docker containers. Concurrent POST requests to /api/settings trigger unsynchronized file writes that interleave at the OS level, corrupting configuration sections and creating cross-contamination between INI fields. In non-deterministic scenarios, user-controlled input can overwrite shell command fields (ReloadCmd, RestartCmd), enabling arbitrary command execution during nginx reload operations. Public exploit code demonstrates the attack path using standard HTTP testing tools. No CISA KEV listing or EPSS data available at time of analysis, but proof-of-concept with detailed reproduction steps exists in the GitHub security advisory.

Authenticated users in nginx-ui v2.3.3 and earlier can delete the entire `/etc/nginx` configuration directory via path traversal using double-encoded sequences (..%252F), causing immediate Nginx service failure and denial of service. The vulnerability exploits improper URL canonicalization combined with unsafe recursive deletion logic that resolves malicious paths to the base configuration directory instead of rejecting them.

Denial of service in MongoDB Server allows authenticated users with limited cluster privileges to crash a mongod process during replica set to sharded cluster promotion, causing potential primary failure. Affects MongoDB 8.2 before 8.2.2, 8.0.18+, and 7.0.31+. No public exploit code or active exploitation confirmed; CVSS 5.3 reflects the narrow attack window and authentication requirement.

Denial of service in Node.js url.format() function allows authenticated remote attackers to crash Node.js processes by supplying malformed internationalized domain names (IDNs) with invalid characters, triggering an assertion failure in native code. CVSS 5.7 (medium severity) with EPSS exploitation probability not independently confirmed. No public exploit code or CISA KEV status identified at time of analysis, but the simplicity of triggering the crash via a standard library function poses moderate real-world risk to production Node.js applications handling untrusted URL input.

Buffer overflow in virtio-win's RhelDoUnMap() function allows local privileged users to trigger a denial of service by supplying an excessive number of descriptors during unmap operations, causing system crashes. Affects Red Hat Enterprise Linux 8, 9, and 10 across multiple architectures. The vulnerability requires high-level privilege (PR:H) but offers no confidentiality or integrity protections beyond the immediate DoS impact, with a CVSS score of 6.7 reflecting the local attack requirement and high-privilege barrier.

Unchecked arithmetic in Rust libp2p-gossipsub heartbeat processing allows remote unauthenticated denial of service via crafted PRUNE control messages. Network-reachable Gossipsub peers can crash vulnerable nodes by sending PRUNE messages with near-maximum backoff values (~i64::MAX), triggering an instant overflow panic during subsequent heartbeat cycles (43-74 seconds later). This is a distinct vulnerability from CVE-2026-33040, affecting a different code path in expiry handling rather than initial insertion. Reported by Ethereum Foundation security team; no public exploit identified at time of analysis, but attack vector is straightforward for any peer capable of establishing libp2p sessions.

Device Monitoring Studio 8.10.00.8925 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string to the server connection. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Navicat for Oracle 12.1.15 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the password field. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

NetworkActiv Web Server 4.0 contains a buffer overflow vulnerability in the username field of the Security options that allows local attackers to crash the application by supplying an excessively. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

SmartFTP Client 9.0.2615.0 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Host field. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

WebDrive 18.00.5057 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the username field during Secure WebDAV. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Softros LAN Messenger 9.2 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string to the custom log files location. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

HeidiSQL 9.5.0.5196 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long file path in the logging preferences. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Free IP Switcher 3.1 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Computer Name field. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

BulletProof FTP Server 2019.0.0.50 contains a denial of service vulnerability in the SMTP configuration interface that allows local attackers to crash the application by supplying an oversized. Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

NetSetMan 4.7.1 contains a buffer overflow vulnerability in the Workgroup feature that allows local attackers to crash the application by supplying oversized input. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Valentina Studio 9.0.4 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the Host field. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

FTPShell Server 6.83 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an excessively long string in the account name field. Rated medium severity (CVSS 6.9), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Remote denial of service in tinyproxy versions through 1.11.3 allows unauthenticated attackers to exhaust all proxy worker connections via malformed HTTP chunked transfer encoding. An integer overflow in chunk size parsing (using strtol() without ERANGE validation) enables attackers to send LONG_MAX values that bypass size checks and trigger arithmetic overflow during chunklen+2 calculations. This forces the proxy to attempt reading unbounded request body data, holding worker slots indefinitely until all connections are exhausted and new clients are rejected. Upstream fix available (commits bb7edc4, 969852c) but latest stable release 1.11.3 remains unpatched. EPSS data not available; no public exploit identified at time of analysis, though attack complexity is low (CVSS AC:L) and requires no authentication (PR:N).

OpenAirInterface AMF version 2.2.0 crashes during message decoding when processing specific malformed input sequences, enabling a denial of service condition. A remote attacker can trigger a consistent crash by sending specially crafted hex-encoded packets (example: 80 00 00 0E 00 00 01 00 0F 80 02 02 40 00 58 00 01 88) to the AMF component. No public exploit code has been identified, but the crash is reproducible with known input patterns.

Unauthenticated file upload in parisneo/lollms versions ≤2.2.0 enables remote attackers to submit arbitrary files for text extraction without authentication via the `/api/files/extract-text` endpoint. The vulnerability (CWE-287: Improper Authentication) allows resource exhaustion DoS attacks and potential information disclosure, with CVSS 7.5 (High) reflecting network-accessible attack surface requiring no privileges. EPSS data not available; no public exploit identified at time of analysis, though the simplicity (AC:L, PR:N) suggests trivial exploitation once endpoint details are known.

Prototype pollution in MikroORM's Utils.merge function allows attackers to modify JavaScript object prototypes when applications pass untrusted user input into ORM operations. Affects @mikro-orm/core npm package, enabling denial of service and potentially SQL injection when polluted properties influence query construction. No public exploit identified at time of analysis, though GitHub security advisory published by the project maintainers confirms the vulnerability class (CWE-1321).

Resource exhaustion in OpenClaw webhook endpoint allows remote attackers to consume server memory and processing resources via unauthenticated Telegram webhook POST requests. OpenClaw versions prior to 2026.3.13 process and buffer entire request bodies before validating authentication tokens, enabling denial-of-service attacks with no authentication required. CVSS 8.7 (High) reflects network-accessible, low-complexity attack with high availability impact. No public exploit identified at time of analysis, though the attack technique is straightforward given the architectural flaw.

Crashmail 1.6 contains a stack-based buffer overflow vulnerability that allows remote attackers to execute arbitrary code by sending malicious input to the application. Rated critical severity (CVSS 9.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Mapscrn 2.0.3 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized input buffer. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

xwpe 1.5.30a-2.1 and prior contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying overly long input strings that exceed buffer. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available.

LibJWT versions 3.0.0 through 3.2.x are vulnerable to denial of service through a NULL pointer dereference in RSA-PSS JWK parsing. When processing specially crafted JWK files that substitute integers for expected string values, the library fails to validate input types, causing a crash. This affects applications that import RSA-PSS keys from JWK files, particularly those handling untrusted key sources. No public exploit code has been identified; patch 3.3.0 resolves the issue.

Remote attackers can crash Zebra cryptocurrency nodes (versions <4.3.0) by sending malformed V5 transactions that pass initial deserialization but trigger panics during transaction ID calculation. The vulnerability requires no authentication and can be exploited via a single crafted network message to the P2P port (8233) or through the sendrawtransaction RPC method. No public exploit code has been identified at time of analysis, though the attack mechanism is well-documented in the vendor advisory. EPSS data not available for this CVE.

Denial of service in Open5GS 2.7.6 via malformed CCA (Credit-Control-Answer) messages in the SMF (Session Management Function) component allows remote attackers to crash the service without authentication. The vulnerability affects the smf_gx_cca_cb, smf_gy_cca_cb, and smf_s6b functions in the CCA Message Handler, with publicly available exploit code demonstrating the attack despite high complexity requirements. CVSS 6.3 reflects the availability impact and remote attack vector, though exploitation requires crafted network conditions.

Arbitrary code execution in Adobe Substance3D Stager 3.1.7 and earlier allows local attackers to execute malicious code with user privileges through specially crafted files. Exploitation requires social engineering to trick users into opening weaponized Stager project files. No public exploit identified at time of analysis, though the use-after-free vulnerability class is well-understood and exploitable. CVSS 7.8 (High) reflects significant impact if exploited, though local attack vector and user interaction requirement reduce immediate risk compared to remotely exploitable flaws.

Denial-of-service vulnerability in Fleet device management software prior to version 4.81.0 allows authenticated hosts to crash the entire Fleet server process by sending a malformed log type value to the gRPC Launcher endpoint, disrupting all connected devices, MDM enrollments, and API consumers. The vulnerability requires prior authentication but affects availability across the entire infrastructure. Vendor-released patch: version 4.81.0.

Handlebars.js template engine crashes Node.js processes when compiling templates containing unregistered decorator syntax (e.g., {{*n}}), enabling single-request denial-of-service attacks against applications that accept user-supplied templates. The vulnerability affects the npm package handlebars (pkg:npm/handlebars) and has CVSS score 7.5 (AV:N/AC:L/PR:N/UI:N). A functional proof-of-concept demonstrating the crash exists in the public advisory, confirming exploit code is publicly available. No active exploitation (CISA KEV) has been reported at time of analysis.

The serialize-javascript npm library versions prior to 7.0.5 contain a CPU exhaustion denial-of-service vulnerability triggered when processing specially crafted array-like objects with artificially large length properties, causing the serialization process to hang indefinitely and consume 100% CPU. The vulnerability affects npm package serialize-javascript (pkg:npm/serialize-javascript) and impacts applications that serialize untrusted or user-controlled objects, particularly those also vulnerable to prototype pollution or YAML deserialization attacks that could inject malicious payloads. No public exploit code has been identified, but the attack vector is network-accessible with high complexity, posing a moderate real-world threat in supply-chain and backend service contexts.

Fleet server memory exhaustion via unbounded request bodies allows unauthenticated denial-of-service against multiple HTTP endpoints. The vulnerability affects Fleet v4 (github.com/fleetdm/fleet/v4) and was responsibly disclosed by @fuzzztf. Attackers can exhaust available memory and force server restarts by sending oversized or repeated HTTP requests to unauthenticated endpoints lacking size limits. No public exploit identified at time of analysis, though the attack mechanism is straightforward given the CWE-770 resource allocation vulnerability class.

Prototype pollution in locutus npm package version 2.0.39 through 3.0.24 allows remote attackers to bypass `Object.prototype` pollution guards via a crafted query string passed to the `parse_str` function, enabling authentication bypass, denial of service, or remote code execution in chained attack scenarios where `RegExp.prototype.test` has been previously compromised. Publicly available exploit code exists demonstrating the vulnerability; vendor-released patch available in version 3.0.25.

Prototype pollution in the locutus npm package's unserialize() function allows remote attackers to inject arbitrary properties into deserialized objects by crafting malicious PHP-serialized payloads containing __proto__ keys, enabling authorization bypass, property propagation attacks, and denial of service via method override. The vulnerability affects locutus versions prior to 3.0.25; publicly available exploit code exists demonstrating property injection, for-in propagation to real own properties, and built-in method disruption.

Wazuh Manager authd service through version 4.7.3 fails to properly restrict client-initiated SSL/TLS renegotiation requests, allowing unauthenticated remote attackers to trigger excessive renegotiations that consume CPU resources and cause denial of service. The vulnerability affects the authentication daemon across all Wazuh Manager deployments running vulnerable versions, enabling attackers to render the authd service unavailable with no authentication required and minimal attack complexity.

Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial-of-service vulnerability in python-ecdsa library allows remote attackers to crash applications parsing untrusted DER-encoded private keys through truncated or malformed DER structures. The DER parsing functions accept invalid input that declares a longer byte length than actually provided, subsequently triggering unexpected internal IndexError exceptions instead of cleanly rejecting the malformed data. Publicly available proof-of-concept code demonstrates deterministic crashes via SigningKey.from_der() on mutated DER inputs.

Wazuh Manager authd service through version 4.7.3 fails to properly restrict client-initiated SSL/TLS renegotiation, enabling remote attackers to trigger denial of service by flooding the service with excessive renegotiation requests that exhaust CPU resources and render the authentication daemon unavailable. The vulnerability affects all Wazuh Manager installations up to and including version 4.7.3, requires no authentication or user interaction, and can be exploited over the network by any remote actor. No public exploit code or active exploitation has been confirmed at this time, though the straightforward nature of renegotiation-based DoS attacks and moderate CVSS score of 6.9 indicate practical exploitability.

Wazuh authd daemon contains a heap-buffer overflow vulnerability (CWE-125) triggered by specially crafted input from authenticated remote users, causing memory corruption and denial of service to the authentication daemon. The vulnerability affects all versions of Wazuh (CPE: cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*) and requires authenticated network access to exploit; no public exploit code or active exploitation has been confirmed at this time.

Grafana versions prior to patching are vulnerable to denial-of-service attacks via maliciously crafted resample queries that exhaust server memory and trigger out-of-memory crashes. Authenticated users with query execution privileges can exploit this low-complexity remote vulnerability to disrupt service availability. No public exploit code or confirmed active exploitation has been identified at the time of analysis, though the attack surface is broad given Grafana's widespread deployment in monitoring infrastructure.

Grafana's testdata data-source plugin allows authenticated users to trigger out-of-memory (OOM) crashes, causing a denial of service affecting availability. The vulnerability requires low-privilege user authentication and network access to the affected Grafana instance, enabling local or remote attackers with valid credentials to exhaust server memory resources without user interaction. No public exploit code or active exploitation has been confirmed at the time of analysis.

OX Dovecot Pro mail delivery processes consume excessive CPU resources when processing mail messages containing abnormally high numbers of RFC 2231 MIME parameters, enabling remote denial of service without authentication or user interaction. Unauthenticated remote attackers can craft malicious MIME messages to trigger algorithmic complexity in parameter parsing, degrading mail service availability. No public exploit code is currently known, and patch availability has not been independently confirmed from the provided advisory reference.

OX Dovecot Pro managesieve-login process crashes repeatedly due to memory exhaustion triggered by unauthenticated attackers sending crafted messages. The vulnerability enables remote denial of service against the managesieve protocol without authentication (CVSS:3.1/AV:N/AC:L/PR:N/UI:N), with a CVSS score of 7.5 (High severity). No public exploit identified at time of analysis, and the vendor has released a security advisory with remediation guidance.

Remote memory-exhaustion denial of service in OX Dovecot Pro (versions up to and including 2.3.0) lets an unauthenticated network attacker exhaust process memory by sending NOOP commands containing thousands of nested parentheses. Each such command consumes roughly 1 MB, and by withholding the terminating line-feed the attacker keeps the allocation alive; ~1000 concurrent connections from even a single source IP can pin around 1 GB, breaching the process VSZ limit and killing the service along with its proxied connections. There is no public exploit identified at time of analysis (EPSS 0.04%, percentile 12; CISA SSVC exploitation=none), but the vector is trivial and a vendor patch is available.

OX Dovecot Pro ManageSieve service crashes when processing AUTHENTICATE commands with SASL initial responses using literal format, enabling unauthenticated remote attackers to repeatedly crash the service and deny availability to legitimate users (CVSS 7.5, High availability impact). The vulnerability affects OX Dovecot Pro installations with ManageSieve enabled. No public exploit identified at time of analysis, and EPSS data was not provided in available intelligence.

Use after free vulnerability in Softing smartLink HW-DP or smartLink HW-PN webserver allows HTTP DoS. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

MyTube prior to version 1.8.72 permits unauthenticated attackers to trigger indefinite account lockouts affecting both administrator and visitor authentication by exploiting a shared, globally-scoped login attempt counter across three publicly accessible password verification endpoints. An attacker can repeatedly send invalid authentication requests to any endpoint, progressively increasing a 24-hour cooldown lockout duration that applies to all endpoints simultaneously, effectively denying legitimate users password-based authentication until the patch is deployed. No public exploit code or active in-the-wild exploitation has been confirmed, but the attack requires no privileges and can be automated trivially.

Inventory depletion in SourceCodester Pharmacy Product Management System 1.0 allows remote attackers to corrupt stock records by submitting negative values through the add-stock.php 'txtqty' parameter, causing the system to decrease inventory instead of increasing it and enabling denial of service via stock exhaustion. Publicly available exploit code exists demonstrating this business logic flaw, and the affected product lacks CVSS severity quantification despite the demonstrated impact on system integrity and availability.

Stack buffer overflow in LSC Indoor Camera V7.6.32 ONVIF GetStreamUri function allows unauthenticated remote attackers to cause denial of service or execute arbitrary code by sending a crafted SOAP request with an oversized Protocol parameter in the Transport element, bypassing input validation and corrupting the stack return instruction pointer.

Path traversal in Incus system container manager allows authenticated remote attackers to write arbitrary files as root on the host via malformed systemd credential configuration keys. Affecting all versions before 6.23.0, this enables both privilege escalation from container to host and denial of service through critical file overwrites. EPSS score of 0.06% (18th percentile) indicates low observed exploitation probability, with no public exploit identified at time of analysis. The CVSS 9.9 Critical rating reflects the severe impact of container escape, though the PR:L requirement and lack of active exploitation temper immediate urgency.

Denial of service in Incus prior to version 6.23.0 allows authenticated users with storage bucket access to crash the Incus daemon via specially crafted storage bucket backups, enabling repeated attacks to render the control plane API unavailable while leaving running workloads unaffected. The vulnerability requires local or remote authentication to the Incus system and has a CVSS score of 6.5 (medium severity) with high availability impact. Vendor-released patch available in version 6.23.0.

Incus versions prior to 6.23.0 allow local authenticated attackers to manipulate temporary screenshot files via predictable /tmp paths and symlink attacks, potentially truncating and altering permissions of arbitrary files on systems with disabled symlink protection (rare), leading to denial of service or local privilege escalation. The vulnerability requires local access and authenticated user privileges but is particularly dangerous on systems without kernel-level symlink protections enabled. An exploit proof-of-concept exists, and the vendor has released patched version 6.23.0 to address the issue.

TigerVNC x0vncserver versions prior to 1.16.2 expose screen contents to unauthorized local users through incorrect file permissions in Image.cxx, enabling information disclosure, screen manipulation, or denial of service. The vulnerability has CVSS 8.5 (High) with local attack vector requiring no privileges or user interaction, and scope change indicating potential impact beyond the vulnerable component. No public exploit identified at time of analysis, though technical details are available via GitHub commit and mailing list disclosure.

Ella Core crashes when processing NAS Authentication Response and Authentication Failure messages with missing Information Elements, enabling unauthenticated attackers on the adjacent network to trigger denial of service affecting all connected subscribers. The vulnerability stems from a null pointer dereference in message handling logic (CWE-476) and carries a CVSS 6.5 score reflecting high availability impact with low attack complexity. Vendor-released patch available via GitHub release v1.7.0.

Ella Core's AMF control plane deadlocks in the SCTP notification handler when processing malformed or stale radio entries, allowing unauthenticated attackers with N2 interface access to hang the entire Access and Mobility Function until manual process restart, completely denying service to all subscribers. The vulnerability (CVSS 6.5, CWE-833 deadlock) stems from improper synchronization in radio cleanup logic combined with stale-entry scanning, and patches are available in version 1.7.0 and later.

Ella Core suffers a null pointer dereference vulnerability in its NGAP LocationReport message handler that causes the process to panic and crash, enabling unauthenticated network-adjacent attackers to trigger denial of service affecting all connected mobile subscribers. The vulnerability (CVE-2026-33903, CVSS 6.5) stems from missing input validation guards and has a vendor-released patch available in version 1.7.0; no public exploit code or active exploitation has been identified at time of analysis.

The node-forge cryptographic library for Node.js suffers from a complete Denial of Service condition when the BigInteger.modInverse() function receives zero as input, causing an infinite loop that consumes 100% CPU and blocks the event loop indefinitely. All versions of node-forge (npm package) are affected, impacting applications that process untrusted cryptographic parameters through DSA/ECDSA signature verification or custom modular arithmetic operations. CVSS 7.5 (High severity) reflects network-reachable, unauthenticated exploitation with no user interaction required. A working proof-of-concept exists demonstrating the vulnerability triggers within 5 seconds. Vendor patch is available via GitHub commit 9bb8d67b99d17e4ebb5fd7596cd699e11f25d023.

TSPortal versions prior to 34 contain an uncontrolled resource creation vulnerability that allows authenticated attackers to generate arbitrary user database records through validation logic abuse, resulting in potential denial of service via uncontrolled database growth. The flaw exists in Miraheze's Trust and Safety management platform (cpe:2.3:a:miraheze:tsportal) and requires low-privilege authenticated access to exploit. Vendor-released patch available in version 34; no public exploit identified at time of analysis.

libssh attempts to open arbitrary files during configuration parsing, allowing local attackers with limited privileges to trigger a denial of service by forcing access to dangerous files such as block devices or large system files. The vulnerability affects Red Hat Enterprise Linux versions 6, 7, 8, 9, and 10, as well as Red Hat OpenShift Container Platform 4, and requires local access with low privileges to exploit. No public exploit code or active exploitation has been confirmed at the time of analysis.

libssh's match_pattern() function is vulnerable to ReDoS (Regular Expression Denial of Service) attacks when processing maliciously crafted hostnames in client configuration or known_hosts files, allowing local attackers with limited privileges and user interaction to trigger inefficient regex backtracking that exhausts system resources and causes client-side timeouts. The vulnerability affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4, with CVSS 2.2 reflecting low severity due to local attack vector and high complexity requirements, though the denial of service impact warrants attention in environments where SSH client availability is critical.

Libssh versions used across Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4 are vulnerable to a null pointer dereference when processing malformed 'longname' fields in SFTP SSH_FXP_NAME messages, allowing unauthenticated remote attackers to trigger denial of service through application crashes. The attack requires user interaction and high attack complexity (CVSS 3.1, CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L) but affects a widely deployed SSH library; no public exploit identified at time of analysis.

Grafana MSSQL data source plugin versions across multiple release branches contain a logic flaw enabling low-privileged Viewer users to bypass API restrictions and trigger catastrophic out-of-memory exhaustion, resulting in host container denial of service. The vulnerability affects Grafana OSS versions 11.6.0 through 12.4.0 across multiple patch branches (11.6.14+security-01, 12.1.10+security-01, 12.2.8+security-01, 12.3.6+security-01, and 12.4.2 or later) and requires only network access and valid low-privileged credentials to exploit; no public exploit code or active exploitation has been confirmed at time of analysis.

Denial of service in p11-kit's PKCS#11 RPC client allows a malicious remote token to trigger a NULL pointer dereference or undefined behavior in applications consuming derive-key operations. The flaw is reachable when an application calls C_DeriveKey against a remote token using IBM Kyber or IBM BTC derive mechanisms whose parameters are NULL, with the RPC client returning an uninitialized value. EPSS is low (0.10%) and no public exploit identified at time of analysis; SSVC marks exploitation as none but automatable.

GIMP's PSD file parser crashes when processing specially crafted Photoshop documents due to improper null-termination in the fread_pascal_string function, allowing local authenticated users to trigger a denial of service. The vulnerability affects GIMP across Red Hat Enterprise Linux 7, 8, and 9, as well as multiple Debian and Ubuntu releases tracked by their respective security teams. While the CVSS score is low (2.8), the widespread distribution across major Linux vendors and confirmed advisory issuance from Red Hat, Debian, and SUSE indicates this merits coordinated patching despite limited exploitability constraints.

A security vulnerability in A flaw (CVSS 4.3). Remediation should follow standard vulnerability management procedures.

GIMP's PSP file parser fails to validate 32-bit length values in the read_creator_block() function, allowing local attackers to trigger integer overflow and heap buffer overflow via specially crafted PSP image files, resulting in application-level denial of service. Red Hat Enterprise Linux versions 6-9, Ubuntu (7 releases), Debian (9 releases), and SUSE are affected. No public exploit code or active exploitation has been identified at the time of analysis, though the vulnerability has been assigned ENISA EUVD ID EUVD-2026-16340 and tracked across major Linux distributions.

The antchfx/xpath Go library prior to version 1.3.6 contains a denial-of-service vulnerability in the logicalQuery.Select function where Boolean XPath expressions that evaluate to true (such as '1=1' or 'true()') trigger an infinite loop, consuming 100% CPU resources. Remote attackers can exploit this via top-level XPath selectors without authentication, potentially disrupting any application that uses this library to process untrusted XPath queries. Upstream fix is available in commit afd4762cc342af56345a3fb4002a59281fcab494, with no public exploit code identified at time of analysis.

The jsonparser library for Go fails to validate slice offsets when processing malformed JSON, enabling remote denial of service through crafted input that triggers negative array indices and runtime panics. The GitHub buger/jsonparser project across all versions is affected. Attackers can send specially crafted JSON payloads to applications using vulnerable versions, causing immediate service termination without requiring authentication or user interaction.

Truncated msgpack fixext format data (codes 0xd4-0xd8) decoded by shamaton/msgpack library versions across v1, v2, and v3 fail to validate input buffer boundaries, triggering out-of-bounds memory reads and runtime panics that enable denial of service. Remote attackers can craft malformed msgpack payloads to crash applications using affected library versions without requiring authentication or user interaction.

libsoup's SoupServer contains a use-after-free vulnerability in the soup_server_disconnect() function that prematurely frees connection objects while TLS handshakes are pending, allowing remote unauthenticated attackers to trigger a server crash via denial of service when a handshake completes after memory deallocation. The vulnerability affects Red Hat Enterprise Linux versions 6, 7, 8, 9, and 10, as well as Ubuntu and Debian distributions across multiple releases. No public exploit code or active exploitation has been confirmed at the time of analysis.

Tandoor Recipes versions prior to 2.6.0 allow authenticated remote attackers to cause denial of service by injecting URL parameters into the USDA FoodData Central search endpoint through improper URL encoding of the query parameter, enabling API key override and server crashes via malformed requests. Publicly available exploit code exists, and a vendor-released patch is available in version 2.6.0.

path-to-regexp versions prior to 8.4.0 are vulnerable to Regular Expression Denial of Service (ReDoS) when processing multiple wildcard parameters combined with path parameters in specific configurations. Unauthenticated remote attackers can craft malicious path patterns containing multiple wildcards (not at the end) to trigger catastrophic regex backtracking, causing denial of service against applications using the affected library. No public exploit code or active exploitation has been confirmed at time of analysis.

The path-to-regexp library versions 8.0.0 through 8.3.0 suffer from catastrophic regular expression denial of service via exponential regex generation when route patterns contain multiple sequential optional groups in curly-brace syntax. Remote unauthenticated attackers can trigger resource exhaustion by submitting crafted route patterns, causing application-level denial of service with CVSS 7.5 (High severity). No public exploit identified at time of analysis, and the vendor has released version 8.4.0 to address the issue.

Prototype pollution in convict npm package version 6.2.4 allows attackers to bypass previous security fixes and pollute Object.prototype through crafted input that manipulates String.prototype.startsWith. The vulnerability affects applications processing untrusted input via convict.set() and can lead to authentication bypass, denial of service, or remote code execution if polluted properties reach dangerous sinks like eval or child_process. A working proof-of-concept exploit demonstrating the bypass technique exists in the advisory.

Netty HTTP/2 servers can be rendered unresponsive by remote attackers flooding CONTINUATION frames with zero-byte payloads, bypassing existing header size limits and exhausting CPU resources. The affected package is io.netty:netty-codec-http2 (tracked via GitHub Security Advisory GHSA-w9fj-cfpg-grvv). Authentication requirements are not confirmed from available data. No public exploit identified at time of analysis, though the technical details provided in the advisory enable straightforward reproduction. The low bandwidth requirement for this CPU-based denial of service makes it highly practical for disrupting services at scale.

Brace-expansion library versions prior to 5.0.5 allow unauthenticated remote attackers to cause denial of service through resource exhaustion by supplying brace expansion patterns with zero step values (e.g., {1..2..0}), triggering an infinite loop that consumes gigabytes of memory and hangs the process for seconds. The vulnerability affects any application passing untrusted input to the expand() function, including glob/minimatch-based tools consuming CLI arguments or configuration files, and requires only 10 bytes of malicious input to trigger.

Stirling-PDF versions 2.1.5 through 2.5.1 are vulnerable to resource exhaustion denial of service through the watermark API endpoint, where authenticated users can supply extreme values for fontSize and widthSpacer parameters to crash the server. A proof-of-concept exists according to SSVC data, and the vendor has released patched version 2.5.2 to resolve the issue.

EVerest charging software stack versions prior to 2026.02.0 contain a use-after-free vulnerability in the ISO15118_chargerImpl::handle_session_setup function that crashes the EVSE process when session setup commands are issued after ISO15118 initialization failure. Remote attackers with MQTT access can trigger this denial of service condition by sending a crafted session_setup command, causing the process to reference freed memory (v2g_ctx). A vendor-released patch is available in version 2026.02.0.

Mattermost server versions 10.11.x through 11.4.x fail to validate decompressed archive entry sizes during ZIP file extraction, allowing authenticated users with file upload permissions to trigger denial of service by uploading crafted zip bombs that exhaust server memory. The vulnerability affects Mattermost 10.11.0-10.11.11, 11.2.0-11.2.3, 11.3.0-11.3.1, and 11.4.0, with CVSS 6.5 (medium) reflecting the requirement for prior authentication and limited scope (availability impact only). No public exploit identified at time of analysis, though the attack vector is network-accessible and requires low complexity once an attacker has valid upload credentials.

Mattermost Plugins versions 11.4 and earlier fail to validate incoming request sizes on webhook endpoints, allowing authenticated attackers to trigger denial of service by sending oversized requests. The vulnerability affects multiple Mattermost release branches (10.x, 11.0.x, 11.1.x, 11.3.x) and has been assigned CVSS 4.9 (medium severity) with no public exploit identified at time of analysis. While exploitability requires high-privilege authentication and manual intervention, the lack of request size enforcement on webhooks represents a fundamental input validation gap that could disrupt service availability in production environments.

Catastrophic backtracking in path-to-regexp versions prior to 0.1.13 enables remote denial of service attacks through specially crafted URLs containing three or more parameters within a single route segment separated by non-period characters. The vulnerability stems from insufficient backtrack protection in regex generation for routes like /:a-:b-:c, allowing unauthenticated attackers to trigger exponential computation times. SSVC framework confirms the vulnerability is automatable with partial technical impact, though no public exploit is identified at time of analysis.