AUGUST 4, 2026
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Case File

CVE-2021-23158

CRITICAL · CVSS 9.8 EPSS 2.28% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-03-16 · 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. It may lead to a denial-of-service condition.

Public Exploit Signal

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

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

CVE
CVE-2021-23158
Severity
CRITICAL
CVSS
9.8
EPSS
2.28%

Original NVD Description

A flaw was found in htmldoc in v1.9.12. Double-free in function pspdf_export(),in ps-pdf.cxx may result in a write-what-where condition, allowing an attacker to execute arbitrary code and denial of service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)