AUGUST 4, 2026
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Case File

CVE-2021-39299

HIGH · CVSS 8.8 EPSS 0.42% 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-2021-39299
Severity
HIGH
CVSS
8.8
EPSS
0.42%

Original NVD Description

Potential vulnerabilities have been identified in UEFI firmware (BIOS) for some PC products which may allow escalation of privilege and arbitrary code execution.

Related CVEs

Other vulnerabilities affecting the same vendor(s)