CVE-2023-53321: high-severity vulnerability in Linux
wifi: mac80211_hwsim: drop short frames
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.2%
exploitation probability
0.2%top 96% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211_hwsim: drop short frames
While technically some control frames like ACK are shorter and
end after Address 1, such frames shouldn't be forwarded through
wmediumd or similar userspace, so require the full 3-address
header to avoid accessing invalid memory if shorter frames are
passed in.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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 10.2%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/3beb97bed860d95b14ad23578ce8ddaea62023dbhttps://git.kernel.org/stable/c/672205c6f2d11978fcd7f0f336bb2c708e28874bhttps://git.kernel.org/stable/c/89a41ed7f21476301659ebd25ccb48a60791c1a7https://git.kernel.org/stable/c/b9a175e3b250b0dc6e152988040aa5014e98e61ehttps://git.kernel.org/stable/c/c64ee9dd335832d5e2ab0a8fc83a34ad4c729799https://git.kernel.org/stable/c/fba360a047d5eeeb9d4b7c3a9b1c8308980ce9a6