CVE-2026-64090
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.259
- Linux Kernel < 5.15.210
- Linux Kernel < 6.1.176
- Linux Kernel < 6.6.143
- Linux Kernel < 6.12.93
- Linux Kernel < 6.18.34
- Linux Kernel < 7.0.11
- Linux Kernel 7.1
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-64090.md and follow it. Check whether this project is affected by CVE-2026-64090. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/1f467d9a095211d3f77e8ff1bee90e73ffe01c64
- https://git.kernel.org/stable/c/99f17d1cdb371cbd037975239b321f346d38f6d2
- https://git.kernel.org/stable/c/9a02c8fc963ddeecb5d8788be0740c1869fc54b7
- https://git.kernel.org/stable/c/ab26e346322648f5c39de017d9723c9256284fce
- https://git.kernel.org/stable/c/b93ca6012712ecab2b551e120d7c95038d6a89e5
- https://git.kernel.org/stable/c/cfb30645280a2131e46cbd1b9a38cfd3ff893f12
- https://git.kernel.org/stable/c/ea4f757641430bcc8322772e161453c4db5ecb64
- https://git.kernel.org/stable/c/fa1bd704940b5bcbc32c0b28db9167405c8ee5e0
References
- https://git.kernel.org/stable/c/1f467d9a095211d3f77e8ff1bee90e73ffe01c64
- https://git.kernel.org/stable/c/99f17d1cdb371cbd037975239b321f346d38f6d2
- https://git.kernel.org/stable/c/9a02c8fc963ddeecb5d8788be0740c1869fc54b7
- https://git.kernel.org/stable/c/ab26e346322648f5c39de017d9723c9256284fce
- https://git.kernel.org/stable/c/b93ca6012712ecab2b551e120d7c95038d6a89e5
- https://git.kernel.org/stable/c/cfb30645280a2131e46cbd1b9a38cfd3ff893f12
- https://git.kernel.org/stable/c/ea4f757641430bcc8322772e161453c4db5ecb64
- https://git.kernel.org/stable/c/fa1bd704940b5bcbc32c0b28db9167405c8ee5e0