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CWE-366

Race Condition within a Thread

17 CVEs Avg CVSS 6.7 MITRE
1
CRITICAL
8
HIGH
7
MEDIUM
1
LOW
3
POC
0
KEV

Monthly

CVE-2026-86247 Sep 23, 12:31 HIGH PATCH This Week

Apache Tomcat Native 1.3.0 through 1.3.8 and 2.0.0 through 2.0.15 can, under a narrow timing window, down-grade the client-certificate verification requirement for connections, weakening mutual-TLS authentication for deployments that enforce client-cert auth through the APR/OpenSSL-based connector. The flaw is a CWE-366 race condition within a thread (CVSS 3.1 base 7.4, AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N), so an unauthenticated network attacker must win a non-deterministic race to succeed, making exploitation probabilistic rather than guaranteed. Only Tomcat instances that actually use Tomcat Native and are configured for client-certificate verification are exposed; no public exploit identified at time of analysis, and no CISA KEV confirmation of active exploitation. Vendor-released fixes are available in 2.0.16 and 1.3.9.

Apache Information Disclosure Red Hat Tomcat Suse +2
NVD
CVSS 3.1
7.4
EPSS
0.2%
CVE-2026-25687 Sep 14, 14:37 HIGH PATCH This Week

Heap corruption triggered by a race condition in the Zscaler Client Connector (ZCC) ZPA tunnel handler allows remote, unauthenticated attackers to crash the client process and, under conditions requiring successful heap grooming, potentially execute code in the context of that process. Only ZCC builds below 4.6.0.486, 4.7.0.350, 4.8.0.267 and 4.9.0.412 are affected, and the practical outcome is more reliably a denial-of-service (client crash) than dependable code execution because the underlying race is non-deterministic and hard to win. No public exploit has been identified at time of analysis and the risk is low-immediacy (EPSS ~0.23%, 14th percentile; SSVC Exploitation: none, Automatable: no), despite the vendor's CVSS 8.1 rating.

RCE Denial Of Service Client Connector Zscaler
NVD
CVSS 3.1
8.1
EPSS
0.2%
CVE-2026-46181 May 28, 10:16 HIGH PATCH This Week

Local privilege escalation or denial-of-service in the Linux kernel's RDMA/mlx4 InfiniBand driver stems from improper RCU synchronization in mlx4_srq_event(), where the mlx4_srq structure is never freed via RCU and can be accessed before initialization completes. Local low-privileged users on systems using Mellanox ConnectX (mlx4) RDMA hardware can trigger a race condition leading to memory corruption or kernel crash, with CVSS 7.8 reflecting high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis, and EPSS scores this at just 0.02%, indicating minimal real-world exploitation likelihood.

Denial Of Service Linux
NVD VulDB
CVSS 3.1
7.8
EPSS
0.0%
CVE-2026-3904 Mar 11, 14:16 MEDIUM PATCH This Month

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

Denial Of Service Glibc Gnu
NVD VulDB
CVSS 3.1
6.2
EPSS
0.0%
CVE-2026-23684 Feb 10, 04:16 MEDIUM This Month

Commerce Cloud versions up to 2205 contains a vulnerability that allows attackers to a cart entry being created with erroneous product value which could be checked o (CVSS 5.9).

Race Condition SAP Commerce Cloud
NVD
CVSS 3.1
5.9
EPSS
0.0%
CVE-2026-22819 Jan 14, 18:16 npm MEDIUM POC PATCH This Month

Outray versions prior to 0.1.5 lack database transaction locking in the subdomain creation API endpoint, allowing authenticated users to bypass rate limits and provision more subdomains than permitted by their service tier. Public exploit code exists for this vulnerability, which affects the quota enforcement mechanism for free plan users. Upgrade to version 0.1.5 or later to remediate.

Information Disclosure Outray
NVD GitHub
CVSS 3.1
5.9
EPSS
0.0%
CVE-2025-58143 Sep 11, 14:15 CRITICAL PATCH This Week

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Xen Suse
NVD
CVSS 3.1
9.8
EPSS
0.0%
CVE-2025-31115 Apr 03, 17:15 HIGH PATCH CISA This Week

XZ Utils provide a general-purpose data-compression library plus command-line tools. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service
NVD GitHub
CVSS 4.0
8.7
EPSS
0.3%
CVE-2024-10630 Jan 14, 17:15 HIGH This Month

A race condition in Ivanti Application Control Engine before version 10.14.4.0 allows a local authenticated attacker to bypass the application blocking functionality. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Ivanti Application Control Security Controls
NVD
CVSS 3.1
7.8
EPSS
0.0%
CVE-2024-2032 Jun 06, 19:15 PyPI LOW PATCH Monitor

A race condition vulnerability exists in zenml-io/zenml versions up to and including 0.55.3, which allows for the creation of multiple users with the same username when requests are sent in parallel. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable.

Information Disclosure Zenml
NVD GitHub
CVSS 3.1
3.1
EPSS
0.3%
EPSS 0% CVSS 7.4
HIGH PATCH This Week

Apache Tomcat Native 1.3.0 through 1.3.8 and 2.0.0 through 2.0.15 can, under a narrow timing window, down-grade the client-certificate verification requirement for connections, weakening mutual-TLS authentication for deployments that enforce client-cert auth through the APR/OpenSSL-based connector. The flaw is a CWE-366 race condition within a thread (CVSS 3.1 base 7.4, AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N), so an unauthenticated network attacker must win a non-deterministic race to succeed, making exploitation probabilistic rather than guaranteed. Only Tomcat instances that actually use Tomcat Native and are configured for client-certificate verification are exposed; no public exploit identified at time of analysis, and no CISA KEV confirmation of active exploitation. Vendor-released fixes are available in 2.0.16 and 1.3.9.

Apache Information Disclosure Red Hat +4
NVD
EPSS 0% CVSS 8.1
HIGH PATCH This Week

Heap corruption triggered by a race condition in the Zscaler Client Connector (ZCC) ZPA tunnel handler allows remote, unauthenticated attackers to crash the client process and, under conditions requiring successful heap grooming, potentially execute code in the context of that process. Only ZCC builds below 4.6.0.486, 4.7.0.350, 4.8.0.267 and 4.9.0.412 are affected, and the practical outcome is more reliably a denial-of-service (client crash) than dependable code execution because the underlying race is non-deterministic and hard to win. No public exploit has been identified at time of analysis and the risk is low-immediacy (EPSS ~0.23%, 14th percentile; SSVC Exploitation: none, Automatable: no), despite the vendor's CVSS 8.1 rating.

RCE Denial Of Service Client Connector +1
NVD
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Local privilege escalation or denial-of-service in the Linux kernel's RDMA/mlx4 InfiniBand driver stems from improper RCU synchronization in mlx4_srq_event(), where the mlx4_srq structure is never freed via RCU and can be accessed before initialization completes. Local low-privileged users on systems using Mellanox ConnectX (mlx4) RDMA hardware can trigger a race condition leading to memory corruption or kernel crash, with CVSS 7.8 reflecting high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis, and EPSS scores this at just 0.02%, indicating minimal real-world exploitation likelihood.

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

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

Denial Of Service Glibc Gnu
NVD VulDB
EPSS 0% CVSS 5.9
MEDIUM This Month

Commerce Cloud versions up to 2205 contains a vulnerability that allows attackers to a cart entry being created with erroneous product value which could be checked o (CVSS 5.9).

Race Condition SAP Commerce Cloud
NVD
EPSS 0% CVSS 5.9
MEDIUM POC PATCH This Month

Outray versions prior to 0.1.5 lack database transaction locking in the subdomain creation API endpoint, allowing authenticated users to bypass rate limits and provision more subdomains than permitted by their service tier. Public exploit code exists for this vulnerability, which affects the quota enforcement mechanism for free plan users. Upgrade to version 0.1.5 or later to remediate.

Information Disclosure Outray
NVD GitHub
EPSS 0% CVSS 9.8
CRITICAL PATCH This Week

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

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

XZ Utils provide a general-purpose data-compression library plus command-line tools. Rated high severity (CVSS 8.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service
NVD GitHub
EPSS 0% CVSS 7.8
HIGH This Month

A race condition in Ivanti Application Control Engine before version 10.14.4.0 allows a local authenticated attacker to bypass the application blocking functionality. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Authentication Bypass Ivanti Application Control +1
NVD
EPSS 0% CVSS 3.1
LOW PATCH Monitor

A race condition vulnerability exists in zenml-io/zenml versions up to and including 0.55.3, which allows for the creation of multiple users with the same username when requests are sent in parallel. Rated low severity (CVSS 3.1), this vulnerability is remotely exploitable.

Information Disclosure Zenml
NVD GitHub

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