CVE-2023-53153: vulnerability in Linux
wifi: cfg80211: Fix use after free for wext
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: cfg80211: Fix use after free for wext
Key information in wext.connect is not reset on (re)connect and can hold
data from a previous connection.
Reset key data to avoid that drivers or mac80211 incorrectly detect a
WEP connection request and access the freed or already reused memory.
Additionally optimize cfg80211_sme_connect() and avoid an useless
schedule of conn_work.
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-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%KEVCVE-2025-39964HIGHcrypto: af_alg - Disallow concurrent writes in af_alg_sendmsgEPSS 1.6%KEV
References
https://git.kernel.org/stable/c/015b8cc5e7c4d7bb671f1984d7b7338c310b185bhttps://git.kernel.org/stable/c/22dfb21bf1cd876616d45cda1bc6daa89eec6747https://git.kernel.org/stable/c/2cfe78619b0de6d2da773978bc2d22797212eaa7https://git.kernel.org/stable/c/66af4a2ab1d65d556d638cb9555a3b823c2557a9https://git.kernel.org/stable/c/6f1959c17d4cb5b74af6fc31dc787e1dc3e4f6e2https://git.kernel.org/stable/c/a2a92b3e9d8e03ee3f9ee407fc46a9b4bd02d8b6https://git.kernel.org/stable/c/f4b6a138efb8a32507b8946104e32cb926308da7https://git.kernel.org/stable/c/fd081afd21eb35b968b0330700c43ec94986e1c4