VULNERABILITY INTELLIGENCE
CVE-2021-31878
CVSS score6.5 MEDIUM
EPSS probability2.46%
CISA KEVNot currently listed
Published2021-07-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- nvd@nist.gov: CWE-617
Primary references
- cve@mitre.org — Patch, Vendor Advisory
- cve@mitre.org — Patch, Third Party Advisory, VDB Entry
- cve@mitre.org — Mailing List, Patch, Third Party Advisory
- cve@mitre.org — Patch, Vendor Advisory
- cve@mitre.org — Exploit, Issue Tracking, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory