AUGUST 4, 2026
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Case File

CVE-2021-42781

MEDIUM · CVSS 5.3 EPSS 2.80% 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.

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

CVE
CVE-2021-42781
Severity
MEDIUM
CVSS
5.3
EPSS
2.80%

Original NVD Description

Heap buffer overflow issues were found in Opensc before version 0.22.0 in pkcs15-oberthur.c that could potentially crash programs using the library.

Related CVEs

Other vulnerabilities affecting the same vendor(s)