CVE-2026-53317
What it is
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: Place upper limit on station AID Any station configured with an AID over 20 causes a firmware crash. This situation occurred in our testing using an AP interface on 7922 hardware, with a modified hostapd, sourced from Mediatek's OpenWRT feeds. In stock hostapd, station AIDs begin counting at 1, and this configuration is prevented with an upper limit on associated stations. However, the modified hostapd began allocation at 65, which caused the firmware to crash. This fix does not allow these AIDs to work, but will prevent the firmware crash. This crash was only seen on IFTYPE_AP interfaces, and the fix does not appear to have an effect on IFTYPE_STATION behavior.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% 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: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 6.12.91
- Linux Kernel < 6.18.33
- Linux Kernel < 7.0.10
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-2026-53317.md and follow it. Check whether this project is affected by CVE-2026-53317. 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/1a4b802afe15c5b33b2dcb37a594aba2fa215d52
- https://git.kernel.org/stable/c/35835ff71e6e618155578b8e3905597edd5f601c
- https://git.kernel.org/stable/c/4d0bf21e3e20619d51d06c0c36207aabab8b712c
- https://git.kernel.org/stable/c/6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952
References
- https://git.kernel.org/stable/c/1a4b802afe15c5b33b2dcb37a594aba2fa215d52
- https://git.kernel.org/stable/c/35835ff71e6e618155578b8e3905597edd5f601c
- https://git.kernel.org/stable/c/4d0bf21e3e20619d51d06c0c36207aabab8b712c
- https://git.kernel.org/stable/c/6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952
- https://git.kernel.org/stable/c/8f2ce0910b25173049910ec9a49304150534afd4
- https://git.kernel.org/stable/c/9d63dd026644fa612a1fd348d5d3ab5d73df7fb8