CVE-2021-26387

published 2024-08-13

CVE-2021-26387: 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…

Priority P4 11 low 3.9 CVSS 3.1

AV L AC H PR H UI N S C C N I L A L

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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
amd	amd_epyc_7001_series_processors	—	—
amd	amd_epyc_7002_series_processors	—	—
amd	amd_epyc_7003_series_processors	—	—
amd	amd_epyc_9004_series_processors	—	—
amd	amd_epyc_embedded_3000_series_processors	—	—
amd	amd_epyc_embedded_7002_series_processors	—	—
amd	amd_epyc_embedded_7003_series_processors	—	—
amd	amd_epyc_embedded_9003_series_processors	—	—

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-863