PJSIP has ICE session use-after-free race conditions
Priority MEDIUM 43CWE-416Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00339 27th percentileScored 2026-11-07
Fix Fixed pjproject (pjsip): 2.17
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA pjproject (pjsip) Fixed in 2.17
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32942
References
More Pjsip vulnerabilities
- TI-2022-08599 Potential out-of-bound read/write in PJSIP CVSS 3.1CRITICAL 9.8
- TI-2026-21009 PJSIP has a heap buffer overflow in ICE with long username CVSS 4.0HIGH 8.1
- TI-2022-18621 Buffer overflow in pjlib scanner and pjmedia CVSS 3.1CRITICAL 9.8
- TI-2026-29548 PJSIP: Stack buffer overflow in pjsip_auth_create_digest2() CVSS 4.0HIGH 8.1
- TI-2026-23213 PJSIP: Stack buffer overflow in Opus codec parser CVSS 4.0HIGH 8.7
- TI-2026-22993 PJSIP: Heap use-after-free in PJSIP presence subscription termination handler CVSS 4.0HIGH 8.7
Sources
- CVE-2026-32942 · CVE Program
- CVE-2026-32942 · NVD
- FIRST EPSS
- CVE-2026-32942 · Red Hat security data · CC BY 4.0
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