CVE-2026-41416: PJSIP: Asymmetric ptime integer overflow in Media Stream

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-24 · updated 2026-10-26
Weakness: CWE-190

Description

PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is an integer overflow in media stream buffer size calculation when processing SDP with asymmetric ptime configuration. The overflow may result in an undersized buffer allocation, which can lead to unexpected application termination or memory corruption This vulnerability is fixed in 2.17.

Affected products

teluu pjsip: before 2.17 — fixed in 2.17

How to fix

Upgrade to a fixed version: teluu pjsip 2.17. Check the vendor advisory for mitigations.

References

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