CVE-2026-99100: vulnerability in Linux
wifi: p54: validate firmware record lengths
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 95% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
wifi: p54: validate firmware record lengths
The p54 firmware parser accesses component ID and component version
records without checking that their lengths cover the fields being read.
A malformed record can therefore make the parser read past the record.
Validate the component ID and component version record lengths before
accessing their data. The descriptor record is also checked against the
shortest descriptor length found in the supported firmware images.
Reject descriptor values that underflow the RX offset or produce an empty
RX range before updating the driver state.
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
CVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 98.1%KEVCVE-2026-46300HIGHnet: skbuff: preserve shared-frag marker during coalescingEPSS 15.7%KEVCVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 3.3%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEV
References
https://git.kernel.org/stable/c/87a9aba92485889d510052e474999a6ec00b888chttps://git.kernel.org/stable/c/8c4f962f368d5e17481f3c2c5a43028953e137a5https://git.kernel.org/stable/c/9af312d3607c8f9b5166a19cbf40cee351cc3a1dhttps://git.kernel.org/stable/c/d5c28994b2c1440480fccd0b6c2ce72c23bb9fffhttps://git.kernel.org/stable/c/db7b86bd97b380ece8fa39cfdd7502a9fd35e56fhttps://git.kernel.org/stable/c/dda5245afc3470d70406764e3d9f5508e534920ahttps://git.kernel.org/stable/c/f4c6fcc2ad462ffd76d6e6f909bcd6ae0391f5b7https://git.kernel.org/stable/c/f641066b0ddcd1b0cf007c0d04f9c966f6e888ae