Medium [CVE-2026-81012] Linux kernel hp-bioscfg: Buffer overflow due to off-by-one write
This medium-severity Red Hat Linux advisory covers CVE-2026-81012.
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Summary
A flaw was found in the Linux kernel's hp-bioscfg component. The `hp_get_string_from_buffer()` function contains an off-by-one write vulnerability.
This occurs because the NUL terminator can be written one byte beyond the allocated buffer, leading to a buffer overflow. An attacker could potentially exploit this to cause memory corruption.
Red Hat severity: Moderate — CVSS 5.1 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H). Weakness: CWE-193.
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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