AUGUST 4, 2026
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Case File

CVE-2021-27804

CRITICAL · CVSS 9.8 EPSS 3.99% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-03-02 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. 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.

External Security References

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

CVE
CVE-2021-27804
Severity
CRITICAL
CVSS
9.8
EPSS
3.99%

Original NVD Description

JPEG XL (aka jpeg-xl) through 0.3.2 allows writable memory corruption.

Related CVEs

Other vulnerabilities affecting the same vendor(s)