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CVE record · CVE-2026-80839

batman-adv: reject unrepresentable multicast TVLV offsets

No CVSS scoreEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 15:54 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 07afe1ba288c04280622fa002ed385f1ac0b6fe6 to before da1f5aa7ec93f2cc17f5cd30efc54f62af433cf2 git
  • affected 07afe1ba288c04280622fa002ed385f1ac0b6fe6 to before 916ec741e65af072b98e475feaad98c063da1b7c git
  • affected 07afe1ba288c04280622fa002ed385f1ac0b6fe6 to before 1b466746fe109127fd983100a228cdd1f1f6ece2 git
  • affected 07afe1ba288c04280622fa002ed385f1ac0b6fe6 to before 2b46baa591d0a7c16b62f150917187e70d053be6 git
  • affected 07afe1ba288c04280622fa002ed385f1ac0b6fe6 to before f12c2de4f542e3220e17e0606f492110064f04cb git
Other versions: unaffected
Linux Linux
  • affected 6.8
  • unaffected before 6.8 semver
  • unaffected 6.12.108 to 6.12.*, inclusive semver
  • unaffected 6.18.49 to 6.18.*, inclusive semver
  • unaffected 7.1.13 to 7.1.*, inclusive semver
  • unaffected 7.2.3 to 7.2.*, inclusive semver
  • unaffected 7.3 to *, inclusive original_commit_for_fix
Other versions: affected
Identifiers
CVE-2026-80839
CNA
Linux
Tags
Published
4 Sept 2026
Updated
19 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

No source has published a CVSS score for this record yet.

  • CISA KEV Not listed.
  • EPSS 0.0017, the 6th percentile, on 14 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 4 Sept 2026. 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.