CVE-2026-93807: vulnerability in Linux
wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers
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 94% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
wifi: rsi: avoid reading TKIP MIC keys for non-TKIP ciphers
rsi_hal_load_key() copies tx_mic_key and rx_mic_key from data[16] and
data[24] whenever key data is present. Those offsets are only part of
the 32-byte TKIP key layout. Shorter keys used by other ciphers, such as
CCMP, do not provide those bytes, so the unconditional copies can read
past the supplied key buffer.
Only copy the MIC keys for TKIP, and reject malformed TKIP keys that are
shorter than the expected 32-byte layout.
[drop useless length check]
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%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 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
References
https://git.kernel.org/stable/c/5207727e53fba1e3a6fce9b2c15b6b8b06c6438bhttps://git.kernel.org/stable/c/55b86ef6c2e68879ffd95203b011ef42a013ab88https://git.kernel.org/stable/c/5902e3c08c63d65724772f74d65b9fb032625dcahttps://git.kernel.org/stable/c/6937b06d55b528e961feff8cc083b97ede622e02https://git.kernel.org/stable/c/6b6690ac5c35e803df14afdc44312d11e8a60893https://git.kernel.org/stable/c/843fe9bc583b7686ca68312ac9319c9240a73c03https://git.kernel.org/stable/c/ebd7172f8c4edc232738ef50338fb773c6f6c208