CVE-2025-39682: Linux Kernel
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.
- Vendor
- Linux
- Product
- Kernel
- Vulnerability
- Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
- Date added
- Sep 18, 2026
- CISA due date (U.S. federal agencies)
- Sep 21, 2026
- Known ransomware campaign use
- Unknown
- Weakness (CWE)
- CWE-754
References
- NVD — CVE-2025-39682
- git.kernel.org
- git.kernel.org
- git.kernel.org
- git.kernel.org
- git.kernel.org
- www.cisa.gov
- www.cisa.gov
- nvd.nist.gov
This site summarizes CISA's catalog for information only. It is not security advice — follow your vendor's guidance and official advisories.
Last updated: · Catalog version 2026.10.02