High severity · published Aug 7, 2025
CVE-2025-3770
SMM IDT Privilege Escalation Vulnerability
7.0
CVSS
0.2%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ED
EDK2 · TianoCore
through edk2-stable202505 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-3770
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-3770
github.com
https://github.com/tianocore/edk2/security/advisories/GHSA-vx5v-4gg6-6qxr
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