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Case File

CVE-2021-31878

MEDIUM · CVSS 6.5 EPSS 2.43% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-07-30 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.5. 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
exploit
External Security References

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

CVE
CVE-2021-31878
Severity
MEDIUM
CVSS
6.5
EPSS
2.43%

Original NVD Description

An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.

Related CVEs

Other vulnerabilities affecting the same vendor(s)