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Vulnerabilities

Vulnerability · CVE-2025-3770

EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access.

Published Aug 7, 2025 · catalog updated Aug 7, 2025 · Tianocore EDK2

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-3770. EPSS is 0.15%. Act only if a listed version of Tianocore EDK2 is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.15%
Remediation
Advisory link
Affected products
vendor Tianocore EDK2 0 ≤edk2-stable202505

EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access. Successful exploitation of this vulnerability will lead to arbitrary code execution and impact Confidentiality, Integrity, and Availability.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Tianocore EDK2 0 ≤edk2-stable2025050 ≤edk2-stable202505

How to fix CVE-2025-3770

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-3770. EPSS is 0.15%. Act only if a listed version of Tianocore EDK2 is installed.

Which versions are affected?

Compare what you have installed with Tianocore EDK2 0 ≤edk2-stable202505 0 ≤edk2-stable202505. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 7, 2025 · EUVD

    Detected

    EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access. Successful exploitation of this vulnerability will lead to arbitrary code execution and impact Confidentiality, Integrity, and Availability.

  2. Aug 7, 2025 · EUVD

    Updated

    EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access. Successful exploitation of this vulnerability will lead to arbitrary code execution and impact Confidentiality, Integrity, and Availability.

Sources

  • CVE.orgVulnerability recordCVE-2025-3770

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-3770

    30-day exploitation probability 0.15%

    first.org
  • EUVDVulnerability recordEUVD-2025-23901

    EDK2 contains a vulnerability in BIOS where an attacker may cause “Protection Mechanism Failure” by local access. Successful exploitation of this vulnerability will lead to arbitrary code execution and impact Confidentiality, Integrity, and Availability.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026