CRITICALCVSS v3.1 9.8Actively exploited · CISA KEV since 2026-09-18Vulnerability
CVE-2025-39682
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.
Properties
- Euvd product
- Linux
- Vulnerability name
- Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability
- First seen
- 2026-10-07T17:56:14+00:00
- Cvss score
- 9.8
- Epss score
- 0.0288
- Last seen
- 2026-10-19T12:00:27+00:00
- Due date
- 2026-09-21
- Euvd assigner
- Linux
- Retrieved at
- 2026-10-21T01:24:47+00:00
- Exploited euvd since
- 2026-09-18T00:00:00+00:00
- Src batch id
- epss_history-20261020T103617Z-728ddd
- Source url
- https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
- Date added
- 2026-09-18
- Euvd base score version
- 3.1
- Score
- 9.8
- Fetched at
- 2026-10-20T10:36:20+00:00
- Euvd vendor
- Linux
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-09-18T17:45:35+00:00
- Euvd base score
- 9.8
Related Entities (9)
AFFECTS_PRODUCT (6)
DESCRIBES (1)
HAS_WEAKNESS (1)
INVOLVES (1)
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