CVE-2026-53317
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.
Affected versions
Linux kernel versions
5.12
and later are affected. Fixed in
6.12.91,
6.18.33,
7.0.10,
7.1
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-53317?
CVE-2026-53317 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.12 onward and has been patched in 6.12.91, 6.18.33, 7.0.10 and others. CVE-2026-53317 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-53317?
Yes — CVE-2026-53317 has been patched. Fixed versions include 6.12.91, 6.18.33, 7.0.10 and others. If you are running Linux kernel 5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-53317 actively exploited?
No — CVE-2026-53317 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.