Out-of-bounds read in Linux kernel - CVE-2026-90137
Published: September 19, 2026
Vulnerability identifier: #VU151345
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90137
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to read beyond the bounds of an ACPI package array.
The vulnerability exists due to an out-of-bounds read in the hp-bioscfg password PSWD_ENCODINGS parser when processing a malformed ACPI password encodings package. A local user can trigger parsing of a malformed package to read beyond the bounds of an ACPI package array.
Affected software
Linux kernel
How to mitigate CVE-2026-90137
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/59fe8491ddaa03a510b352552e6ee291e7ce45d3
- https://git.kernel.org/stable/c/8a7499b8fd34438c1b11964e0e7ef5bd590fec92
- https://git.kernel.org/stable/c/ace1ba5fca0ab775b3641e154bcbc3ccde26a71a
- https://git.kernel.org/stable/c/c224759555a13735b0d67561d818cefe00c3309a
- https://git.kernel.org/stable/c/e213939ed9e6e6badf7aa48c4c8dd9a9cdf00615