CVE-2025-4277
HIGHCVSS 7.5/10EPSS 0.13%
Last modified
CVE-2025-4277 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Tcg2Smm has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
Tcg2Smm has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.
Metrics
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-4277?
Tcg2Smm has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.
How severe is CVE-2025-4277?
CVE-2025-4277 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.13% probability of exploitation in the next 30 days.
How do I fix CVE-2025-4277?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2025-4277?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST