CVE-2026-20712: Information Disclosure in Intel(R) reference platforms
CVE-2026-20712 is an information disclosure vulnerability in some UEFI firmware for Intel reference platforms. It involves incomplete cleanup in the firmware that may allow a privileged local attacker to expose sensitive data. The attack requires local access, privileged system software adversary, and no user interaction. The vulnerability impacts system confidentiality but does not affect integrity or availability. The CVSS score is 4.0, indicating a medium severity level. No patch or official remediation guidance is currently available.
AI Analysis
Technical Summary
This vulnerability arises from incomplete cleanup in certain UEFI firmware implementations on Intel reference platforms. A system software adversary with privileged user rights and local access can exploit this flaw with low complexity to disclose sensitive information. The vulnerability does not affect system integrity or availability but can lead to confidentiality breaches. No vendor advisory or patch information is provided, and no known exploits are reported in the wild.
Potential Impact
The vulnerability may lead to unauthorized disclosure of sensitive information on affected systems. It does not impact system integrity or availability. The confidentiality impact is rated high, while integrity and availability impacts are none. Exploitation requires privileged local access and does not require user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit privileged local access to trusted users and monitor for unusual activity consistent with local privilege misuse.
CVE-2026-20712: Information Disclosure in Intel(R) reference platforms
Description
CVE-2026-20712 is an information disclosure vulnerability in some UEFI firmware for Intel reference platforms. It involves incomplete cleanup in the firmware that may allow a privileged local attacker to expose sensitive data. The attack requires local access, privileged system software adversary, and no user interaction. The vulnerability impacts system confidentiality but does not affect integrity or availability. The CVSS score is 4.0, indicating a medium severity level. No patch or official remediation guidance is currently available.
CVSS v4.0
Score 4.0medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from incomplete cleanup in certain UEFI firmware implementations on Intel reference platforms. A system software adversary with privileged user rights and local access can exploit this flaw with low complexity to disclose sensitive information. The vulnerability does not affect system integrity or availability but can lead to confidentiality breaches. No vendor advisory or patch information is provided, and no known exploits are reported in the wild.
Potential Impact
The vulnerability may lead to unauthorized disclosure of sensitive information on affected systems. It does not impact system integrity or availability. The confidentiality impact is rated high, while integrity and availability impacts are none. Exploitation requires privileged local access and does not require user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit privileged local access to trusted users and monitor for unusual activity consistent with local privilege misuse.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- intel
- Date Reserved
- 2025-12-03T17:58:55.176Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b628dbf8831d5392312a8
Added to database: 08/11/2026, 17:57:33 UTC
Last enriched: 08/11/2026, 18:44:48 UTC
Last updated: 08/12/2026, 01:18:07 UTC
Views: 4
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