CVE-2026-20712
A local attacker can exploit a vulnerability in Intel UEFI Reference BIOS to disclose information.
CSIRTS triage
- What
- Local attacker can disclose information via vulnerability in UEFI Reference BIOS.
- Who is affected
- Systems using Intel UEFI Reference BIOS with local attacker access.
- Urgency
- Medium severity limited to local access; apply BIOS updates within standard patch cycles.
- Action
- Update BIOS firmware to patched version addressing CVE-2026-20712.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[NEW] [medium] Intel UEFI Reference BIOS: Vulnerability enables disclosure of informationcert-bund · 2026-08-18
- unknownCVE-2026-20712: Incomplete cleanup in some UEFI firmware for some Intel(R) reference platforms within UEFI may…nvd · 2026-08-11
External references
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[](https://www.csirts.com/cve/CVE-2026-20712)