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CVE record · CVE-2025-39682

tls: fix handling of zero-length records on the rx_list

CVSS 9.8 CriticalCriticalIn CISA KEVEPSS 0.032 · 88th percentile

Critical, because:

  • In CISA’s KEV catalogue since 18 Sept 2026: it is known to be exploited.
  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: Linux) at 5 Sept 2025, 17:20 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Linux Linux
  • affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 to before 2902c3ebcca52ca845c03182000e8d71d3a5196f git
  • affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 to before c09dd3773b5950e9cfb6c9b9a5f6e36d06c62677 git
  • affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 to before 3439c15ae91a517cf3c650ea15a8987699416ad9 git
  • affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 to before 29c0ce3c8cdb6dc5d61139c937f34cb888a6f42e git
  • affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 to before 62708b9452f8eb77513115b17c4f8d1a22ebf843 git
Other versions: unaffected
Linux Linux
  • affected 6.0
  • unaffected before 6.0 semver
  • unaffected 6.1.149 to 6.1.*, inclusive semver
  • unaffected 6.6.103 to 6.6.*, inclusive semver
  • unaffected 6.12.44 to 6.12.*, inclusive semver
  • unaffected 6.16.4 to 6.16.*, inclusive semver
  • unaffected 6.17 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2025-39682
CNA
Linux
Weakness (CWE)
CWE-754
Tags
Published
5 Sept 2025
Updated
7 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CNA (Linux)
  • CISA KEV Listed since 18 Sept 2026: known to be exploited.
  • EPSS 0.032, the 88th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 5 Sept 2025. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.