CVE-2023-53153

HIGH

Linux Kernel 2.6.32-4.14.308 - Use-After-Free in WiFi cfg80211 wext.connect

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v3 7.8
EPSS 0.0015
EPSS Percentile 4.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (19)
Linux/Linux < 2.6.32
Linux/Linux 2.6.32
Linux/Linux 4.14.308 - 4.14.*
Linux/Linux 4.19.276 - 4.19.*
Linux/Linux 5.10.173 - 5.10.*
Linux/Linux 5.15.99 - 5.15.*
Linux/Linux 5.4.235 - 5.4.*
Linux/Linux 6.1.16 - 6.1.*
Linux/Linux 6.2.3 - 6.2.*
Linux/Linux 6.3
... and 9 more
Published Sep 15, 2025
Tracked Since Feb 18, 2026