AUGUST 4, 2026
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Case File

CVE-2021-42778

MEDIUM · CVSS 5.3 EPSS 2.09% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-04-18 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. 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.

GitHub PoC Links

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

CVE
CVE-2021-42778
Severity
MEDIUM
CVSS
5.3
EPSS
2.09%

Original NVD Description

A heap double free issue was found in Opensc before version 0.22.0 in sc_pkcs15_free_tokeninfo.

Related CVEs

Other vulnerabilities affecting the same vendor(s)