Out-of-bounds write in Linux kernel - CVE-2026-97518
Published: September 24, 2026
Vulnerability identifier: #VU151974
CSH Severity: Low
CVSS v4: 1.8 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97518
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to cause memory corruption.
The vulnerability exists due to improper validation of duplicate cipher suite entries in cfg80211 wiphy registration when WEXT compatibility code handles SIOCGIWRANGE requests. A local privileged user can register a wiphy with duplicate WEP cipher suite entries and request wireless range information to cause memory corruption.
Affected software
Linux kernel
How to mitigate CVE-2026-97518
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3