8.0
HIGH CVSS 4.0
CVE-2026-32942
PJSIP has ICE session use-after-free race conditions
Description

PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain a heap use-after-free vulnerability in the ICE session that occurs when there are race conditions between session destruction and the callbacks. This issue has been fixed in version 2.17.

INFO

Published Date :

March 20, 2026, 4:16 a.m.

Last Modified :

March 20, 2026, 4:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-32942 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH [email protected]
Solution
Update PJSIP to version 2.17 or later to fix the heap use-after-free vulnerability.
  • Update PJSIP to version 2.17 or later.
  • Apply patches for the ICE session race condition.
  • Rebuild and redeploy the affected application.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-32942.

URL Resource
https://github.com/pjsip/pjproject/commit/c9caceddabda7f18337b2a82d25d65f6224b450a
https://github.com/pjsip/pjproject/issues/1451
https://github.com/pjsip/pjproject/security/advisories/GHSA-g88q-c2hm-q7p7
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-32942 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-32942 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-32942 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-32942 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Mar. 20, 2026

    Action Type Old Value New Value
    Added Description PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain a heap use-after-free vulnerability in the ICE session that occurs when there are race conditions between session destruction and the callbacks. This issue has been fixed in version 2.17.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-416
    Added Reference https://github.com/pjsip/pjproject/commit/c9caceddabda7f18337b2a82d25d65f6224b450a
    Added Reference https://github.com/pjsip/pjproject/issues/1451
    Added Reference https://github.com/pjsip/pjproject/security/advisories/GHSA-g88q-c2hm-q7p7
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.