CVE-2026-72226
What it is
In the Linux kernel, the following vulnerability has been resolved: batman-adv: tt: prevent TVLV OOB check overflow A TT unicast TVLV contains the number of VLANs stored in it. This number is an u16 and gets multiplied by the size of the struct batadv_tvlv_tt_vlan_data (8 bytes). The size can therefore overflow the u16 used to store the tt_vlan_len. All additional safety checks to prevent out-of-bounds access of the TVLV buffer are invalid due to this overflow. Using size_t prevents this overflow and ensures that the safety checks compare against the actual buffer requirements.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- 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: 0.8% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.8% · EPSS, next 30 days
- Record status
- Received
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-2026-72226.md and follow it. Check whether this project is affected by CVE-2026-72226. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- https://git.kernel.org/stable/c/0de12a4c4847f571d82a9cd96bc633eded41d7c6
- https://git.kernel.org/stable/c/1898273c5dc8148267ef9f97cd2517a2822350e7
- https://git.kernel.org/stable/c/3256c05d5a9db34346eaf20f52dddde984852d77
- https://git.kernel.org/stable/c/604bd5042fbcd1ab9f7cd98fd847ec017aeede8a
- https://git.kernel.org/stable/c/6222b443686525cb5a9b6a9cecf23b2e2ab23e2a
- https://git.kernel.org/stable/c/7319c0794f91be2734aac695794e7203606b49f8
- https://git.kernel.org/stable/c/7a581d9aaba8c82bd6177fa36b2588eea77f6e2b
- https://git.kernel.org/stable/c/d6ff4764ff784ede25f5c83a6f5883a74c93a5ea