# PJSIP vulnerabilities

Source: https://junglewise.ai/threats/technologies/pjsip-pjsip  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/pjsip-pjsip.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in PJSIP: 0 in the last 7 days and 2 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-84975, was published on 18 September 2026. Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 2
- All time: 4 (1 critical, 0 exploited in the wild)

## About PJSIP

Open source Session Initiation Protocol (SIP) library for multimedia communication.

## Latest PJSIP vulnerabilities

- [CVE-2026-84975: PJSIP TLS server identity verification bypass via embedded NUL in certificate SubjectAltName](https://junglewise.ai/threats/cve-2026-84975-pjsip-is-a-free-and-open-source-multimedia-communication-library) (high, CVSS 7.4, published 18 Sep 2026)
- [CVE-2026-77396: PJSIP heap buffer overflow in AVI parser](https://junglewise.ai/threats/cve-2026-77396-pjsip-is-a-free-and-open-source-multimedia-communication-library) (info, published 18 Sep 2026)
- [CVE-2026-40892: PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer…](https://junglewise.ai/threats/cve-2026-40892-pjsip-is-a-free-and-open-source-multimedia-communication-library) (critical, CVSS 9.8, published 21 Apr 2026)
- [CVE-2026-40614: PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is a buffer…](https://junglewise.ai/threats/cve-2026-40614-pjsip-is-a-free-and-open-source-multimedia-communication-library) (high, CVSS 8.8, published 21 Apr 2026)

## Most severe PJSIP vulnerabilities

- [CVE-2026-40892: PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer…](https://junglewise.ai/threats/cve-2026-40892-pjsip-is-a-free-and-open-source-multimedia-communication-library) (critical, CVSS 9.8, published 21 Apr 2026)
- [CVE-2026-40614: PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is a buffer…](https://junglewise.ai/threats/cve-2026-40614-pjsip-is-a-free-and-open-source-multimedia-communication-library) (high, CVSS 8.8, published 21 Apr 2026)
- [CVE-2026-84975: PJSIP TLS server identity verification bypass via embedded NUL in certificate SubjectAltName](https://junglewise.ai/threats/cve-2026-84975-pjsip-is-a-free-and-open-source-multimedia-communication-library) (high, CVSS 7.4, published 18 Sep 2026)
- [CVE-2026-77396: PJSIP heap buffer overflow in AVI parser](https://junglewise.ai/threats/cve-2026-77396-pjsip-is-a-free-and-open-source-multimedia-communication-library) (info, published 18 Sep 2026)

## Vulnerabilities per week

Nothing in the last four weeks, down from 2 vulnerabilities in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 2 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other PJSIP technologies

- [PJSIP Pjproject](https://junglewise.ai/threats/technologies/pjproject): 7 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "PJSIP vulnerabilities", https://junglewise.ai/threats/technologies/pjsip-pjsip, 9 November 2026.