CVE-2026-64090batman-adv: tt: avoid empty VLAN responses
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: avoid empty VLAN responses The commit 16116dac2339 ("batman-adv: prevent TT request storms by not sending inconsistent TT TLVLs") added checks to the local (direct) TT response code. But the response can also be done indirectly by another node using the global TT state. To avoid such inconsistency states reported in the original fix, also avoid sending empty VLANs for replies from the global TT state.
Timeline
ID reserved
By Linux
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < 1f467d9a095211d3f77e8ff1bee90e73ffe01c64
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < 9a02c8fc963ddeecb5d8788be0740c1869fc54b7
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < ea4f757641430bcc8322772e161453c4db5ecb64
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < 99f17d1cdb371cbd037975239b321f346d38f6d2
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < cfb30645280a2131e46cbd1b9a38cfd3ff893f12
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < b93ca6012712ecab2b551e120d7c95038d6a89e5
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < ab26e346322648f5c39de017d9723c9256284fce
- affected 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b – < fa1bd704940b5bcbc32c0b28db9167405c8ee5e0
- affected 3.13
- unaffected < 3.13
- unaffected 5.10.259 – ≤ 5.10.*
- unaffected 5.15.210 – ≤ 5.15.*
- unaffected 6.1.176 – ≤ 6.1.*
- unaffected 6.6.143 – ≤ 6.6.*
- unaffected 6.12.93 – ≤ 6.12.*
- unaffected 6.18.34 – ≤ 6.18.*
- unaffected 7.0.11 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/1f467d9a095211d3f77e8ff1bee90e73ffe01c64 (opens in a new tab)
- https://git.kernel.org/stable/c/9a02c8fc963ddeecb5d8788be0740c1869fc54b7 (opens in a new tab)
- https://git.kernel.org/stable/c/ea4f757641430bcc8322772e161453c4db5ecb64 (opens in a new tab)
- https://git.kernel.org/stable/c/99f17d1cdb371cbd037975239b321f346d38f6d2 (opens in a new tab)
- https://git.kernel.org/stable/c/cfb30645280a2131e46cbd1b9a38cfd3ff893f12 (opens in a new tab)
- https://git.kernel.org/stable/c/b93ca6012712ecab2b551e120d7c95038d6a89e5 (opens in a new tab)
- https://git.kernel.org/stable/c/ab26e346322648f5c39de017d9723c9256284fce (opens in a new tab)
- https://git.kernel.org/stable/c/fa1bd704940b5bcbc32c0b28db9167405c8ee5e0 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-45775 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64090)Record last updated .