CVE-2021-26387

LOW
3.9
CVSS Score
Published: August 13, 2024 at 04:50 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
8 products affected across 1 vendorEpyc 7003Epyc 7002Epyc 7001

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Severity
LOW3.9
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.9LOWAMD
Attack Vector
LOCAL
Complexity
HIGH
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863

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