CVE-2025-3770 SMM IDT Privilege Escalation Vulnerability
Local attackers can exploit an SMM IDT flaw in EDK2 BIOS to achieve arbitrary code execution and privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-3770?
CVE-2025-3770 is a high-severity vulnerability in TianoCore EDK2, published on 7 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-693
Which versions are affected by CVE-2025-3770?
How do I fix CVE-2025-3770?
Apply the vendor's patch.
Is CVE-2025-3770 being exploited?
There is no known exploitation of CVE-2025-3770 in the wild and no public exploit code.
Sources
Also known as AZL-66108, AZL-66119, AZL-66122, DEBIAN-CVE-2025-3770, GHSA-vx5v-4gg6-6qxr, UBUNTU-CVE-2025-3770.