AUGUST 4, 2026
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Case File

CVE-2021-26402

HIGH · CVSS 7.1 EPSS 0.18%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-01-11 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-26402
Severity
HIGH
CVSS
7.1
EPSS
0.18%

Original NVD Description

Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.