CVE-2026-20712
MediumCVSS 4.0Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
Some UEFI firmware for Intel(R) reference platforms contains an incomplete cleanup vulnerability that may allow information disclosure. A system software adversary with a privileged user and a low complexity attack may enable data exposure. This requires local access but no user interaction. The vulnerability may impact system confidentiality (high), but not integrity or availability.
Risk Assessment
A local attacker with privileged access can access sensitive data stored in UEFI, potentially leading to confidentiality breaches.
Recommendation
Apply UEFI firmware updates provided by Intel for affected platforms.
Other vulnerabilities in Intel UEFI Firmware
See all- CVE-2025-20105High
Improper input validation in some UEFI firmware SMM module for Intel reference platforms may allow an escalation of privilege. A system software adversary with a privileged user combined with a low complexity attack may enable local code execution. This may occur via local access without special internal knowledge and requires no user interaction. The potential impact on confidentiality, integrity, and availability is high.
- CVE-2025-20068High
Improper input validation in the UEFI ImcErrorHandler module for some Intel reference platforms may allow an escalation of privilege. A system software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This may occur via local access without special internal knowledge and requires no user interaction. The potential impact on confidentiality, integrity, and availability is high, but subsequent impacts are none.
- CVE-2025-20064High
Improper input validation in the UEFI FlashUcAcmSmm module for some Intel reference platforms may allow an escalation of privilege. A system software adversary with a privileged user combined with a high complexity attack may enable local code execution. This may occur via local access without special internal knowledge and requires no user interaction. The potential impact on confidentiality, integrity, and availability is high.
Original NVD description (English source)
Incomplete cleanup in some UEFI firmware for some Intel(R) reference platforms within UEFI may allow an information disclosure. System software adversary with a privileged user combined with a low complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS