CVE-2025-39682CISA KEVEPSS p86.4%

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

Linux / Kernel

Description

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.

Scoring

CVSS 9.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS2.88% probability of exploitation · percentile 86.4% · 2026-10-05T12:00:23Z
Last modified2026-09-21

CISA KEV entry

Added to KEV: 2026-09-18

Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.