Out-of-bounds read in Linux kernel - CVE-2026-93281
Published: September 25, 2026
Vulnerability identifier: #VU152120
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93281
CWE-ID: CWE-125
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to read out-of-bounds memory.
The vulnerability exists due to an out-of-bounds read in rtw89_mac_check_he_obss_narrow_bw_ru_iter() when processing extended capability information with a length of 10 bytes. A remote attacker can provide an extended capability element that is 10 bytes long to read out-of-bounds memory.
Affected software
Linux kernel
How to mitigate CVE-2026-93281
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/2aba608a86e9b099c9af2ea70b620552dee2b628
- https://git.kernel.org/stable/c/655c4401c18d735dbaf2cc172ff4f626b3a896a0
- https://git.kernel.org/stable/c/bddbd1de765bf6ddc0473ad683910eb3a2a92a43
- https://git.kernel.org/stable/c/eddf53f1edb0cf7f302bd15cdb47cca90948c205
- https://git.kernel.org/stable/c/f132fc01b359a0f7d81fe13d769ea4e7c4baa66e
- https://git.kernel.org/stable/c/f2a01deff7d0d5cc3dcbf2358dac113979303c8e