CISA Known Exploited Vulnerabilities Directory

Explore every threat in the CISA Known Exploited Vulnerabilities (KEV) catalog, enhanced with plain-English executive analysis, AWS relevance, and technical remediation guidance.

Showing 1–10 of 31 records

CVE Vendor Product Added Due Status
CVE-2025-39682 — Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
Linux Kernel Sep 18, 2026 Sep 21, 2026
CVE-2025-39964 — Linux Kernel Race Condition Vulnerability
Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state.
Linux Kernel Sep 18, 2026 Sep 21, 2026
CVE-2026-53266 — Linux Kernel Out-of-Bounds Write Vulnerability
Linux Kernel contains an out-of-bounds write vulnerability in the ebtables SNAT target which allows an ARP sender hardware address rewrite to write directly into a nonlinear socket-buffer fragment backed by a splice-imported file page. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
Linux Kernel Sep 18, 2026 Sep 21, 2026
CVE-2026-53362 — Linux Kernel Unspecified Vulnerability
Linux Kernel contains an unspecified vulnerability that can allow for privilege escalation via IPv6 networking subsystem. This vulnerability can impact multiple products, including but not limited to Suse, Red Hat, and other products using Linux.
Linux Kernel Aug 27, 2026 Aug 30, 2026
CVE-2022-0995 — Linux Kernel Out-of-Bounds Write Vulnerability
Linux Kernel contains an out-of-bounds memory write vulnerability which could allow a local user to gain privileged access or cause a denial of service on the system.
Linux Kernel Aug 26, 2026 Aug 29, 2026
CVE-2022-0492 — Linux Kernel Improper Authentication Vulnerability
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.
Linux Kernel Jun 2, 2026 Jun 5, 2026
CVE-2026-31431 — Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
Linux Kernel May 1, 2026 May 15, 2026
CVE-2018-14634 — Linux Kernel Integer Overflow Vulnerability
Linux Kernel contains an integer overflow vulnerability in the create_elf_tables() function which could allow an unprivileged local user with access to SUID (or otherwise privileged) binary to escalate their privileges on the system.
Linux Kernel Jan 26, 2026 Feb 16, 2026
CVE-2021-22555 — Linux Kernel Heap Out-of-Bounds Write Vulnerability
Linux Kernel contains a heap out-of-bounds write vulnerability that could allow an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space.
Linux Kernel Oct 6, 2025 Oct 27, 2025
CVE-2025-38352 — Linux Kernel Time-of-Check Time-of-Use (TOCTOU) Race Condition Vulnerability
Linux kernel contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that has a high impact on confidentiality, integrity, and availability.
Linux Kernel Sep 4, 2025 Sep 25, 2025

CVE-2025-39682 — Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability

Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.

Kernel · Sep 18, 2026

CVE-2026-53266 — Linux Kernel Out-of-Bounds Write Vulnerability

Linux Kernel contains an out-of-bounds write vulnerability in the ebtables SNAT target which allows an ARP sender hardware address rewrite to write directly into a nonlinear socket-buffer fragment backed by a splice-imported file page. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.

Kernel · Sep 18, 2026