CVE-2021-26387

3.9 lowEPSS 0.1%

Low (3.9). EPSS 0.1% chance of exploitation in the next 30 days.

Insufficient access controls in ASP kernel may allow a privileged attacker with access to AMD signing keys and the BIOS menu or UEFI shell to map DRAM regions in protected areas, potentially leading to a loss of platform integrity.

Severity

CVSS 3.1

3.9 low

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

EPSS: 0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-31)
CWE: CWE-863
Published: 2024-08-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html

Check your stack JSON