CVE-2025-52536
CVE-2025-52536 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1231.
Key facts
- Severity: Medium (CVSS 4.0 base score 6.7)
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-207138
- Weakness: CWE-1231
- Published:
- Last modified:
Description
Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.
Frequently asked questions
- What is CVE-2025-52536?
- Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.
- How severe is CVE-2025-52536?
- CVE-2025-52536 has a CVSS 4.0 base score of 6.7, rated medium severity.
- Is CVE-2025-52536 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-52536?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-52536 have an EU (EUVD) identifier?
- Yes. CVE-2025-52536 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207138.
- When was CVE-2025-52536 published?
- CVE-2025-52536 was published on 2026-02-10 and last updated on 2026-06-17.
References
Other CWE-1231 vulnerabilities
- CVE-2024-36354 — High (CVSS 7.5): Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access,…
- CVE-2022-42285 — Medium (CVSS 6.0): DGX A100 SBIOS contains a vulnerability in the Pre-EFI Initialization (PEI)phase, where a privileged user can disable…