Out-of-bounds read in Linux kernel - CVE-2026-74651
Published: August 24, 2026
Vulnerability identifier: #VU144887
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-74651
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to out-of-bounds read in rtw_get_wpa_ie() when parsing vendor-specific information elements from received management frames or WPA IE data. A remote attacker can send a specially crafted management frame or crafted IE data to disclose sensitive information.
The issue can be triggered by a short trailing vendor-specific information element whose length is 0 to 5 bytes.
Affected software
Linux kernel
Debian Linux
linux (Debian package)
Debian Linux
linux (Debian package)
How to mitigate CVE-2026-74651
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux (Debian package) - update to 6.12.105-1
linux (Debian package) - update to 6.12.105-1
External References
- https://git.kernel.org/stable/c/01ab275f8f3e497a13ebbe4ded44ec0623bccde3
- https://git.kernel.org/stable/c/0d19f0600fbb610c42f2a86f95c35706dc04691b
- https://git.kernel.org/stable/c/1c3e23e78862493e8cf1adad02b10ffcb8b9921c
- https://git.kernel.org/stable/c/42c5a0d454aa5b54fec17162d9a1f8c30f8af45a
- https://git.kernel.org/stable/c/4fc459c5cd8767ca4d9bf2f7becbd562639ba4d9
- https://git.kernel.org/stable/c/b45be82387bf759931acdd21ca7dfe740f16eb97
- https://git.kernel.org/stable/c/c9068f82a0906b29c905e8788edb62c3208c7c8a
- https://git.kernel.org/stable/c/e167a38a8a8f50f137721fef1a1fbba0f4588b5d