Medium [CVE-2026-81013] Linux kernel hp-bioscfg: Information disclosure due to heap out-of-bounds read
This medium-severity Red Hat Linux advisory covers CVE-2026-81013.
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Summary
A flaw was found in the hp-bioscfg component of the Linux kernel. A local user could trigger a heap out-of-bounds read by writing an empty string to the current_password or new_password fields.
This occurs because the validate_password_input() function attempts to access memory before the allocated buffer when processing an empty input. This vulnerability could lead to information disclosure by reading one byte of data past the buffer.
Red Hat severity: Moderate — CVSS 4.7 (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H). Weakness: CWE-125.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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