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CVE-2021-26377

MEDIUM
4.1
CVSS Score
Published: September 6, 2025 at 03:18 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
Products not identified yet

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Severity
MEDIUM4.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

Insufficient parameter validation while allocating process space in the Trusted OS (TOS) may allow for a malicious userspace process to trigger an integer overflow, leading to a potential denial of service.

Affected

We have no canonical product record for this CVE. The source names may not have matched any product.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: [email protected]
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html
Source: [email protected]
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html
Source: [email protected]
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.1MEDIUMAMD
Attack Vector
LOCAL
Complexity
HIGH
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-190

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