SB2026091977 - Out-of-bounds read in Linux kernel hp hp-bioscfg driver
Published: September 19, 2026
Security Bulletin ID
SB2026091977
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-90137)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 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]
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.
Remediation
Install update from vendor's website.
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