AUGUST 4, 2026
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Case File

CVE-2021-39298

HIGH · CVSS 8.8 EPSS 0.45% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-02-16 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
arbitrary code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-39298
Severity
HIGH
CVSS
8.8
EPSS
0.45%

Original NVD Description

A potential vulnerability in AMD System Management Mode (SMM) interrupt handler may allow an attacker with high privileges to access the SMM resulting in arbitrary code execution which could be used by malicious actors to bypass security mechanisms provided in the UEFI firmware.

Related CVEs

Other vulnerabilities affecting the same vendor(s)