CVE-2026-41416 PJSIP: Asymmetric ptime integer overflow in Media Stream
An integer overflow in PJSIP's media stream buffer calculation allows attackers to cause denial of service or memory corruption via crafted SDP.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41416?
CVE-2026-41416 is a high-severity vulnerability in pjsip pjproject, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-190
Which versions are affected by CVE-2026-41416?
It affects 1 product.
Products include Teluu Pjsip.
How do I fix CVE-2026-41416?
Upgrade to a fixed version.
Is CVE-2026-41416 being exploited?
There is no known exploitation of CVE-2026-41416 in the wild and no public exploit code.
Other vulnerabilities in pjsip pjproject
- CVE-2023-38703 PJSIP has use-after-free vulnerability in SRTP media transport
- CVE-2022-39269 Media transport downgrade from the secure version (SRTP) to non-secure (RTP) in pjsip
- CVE-2026-57161 PJSIP: Stack overflow handling Service-Route headers in a registration response
- CVE-2026-57162 PJSIP: Stack overflow parsing SDP a=crypto attributes
- CVE-2026-57163 PJSIP: Stack overflow parsing a TLS peer certificate's SubjectAltName in GnuTLS backend
Sources
Also known as DEBIAN-CVE-2026-41416, GHSA-f33g-8hjq-62xr, UBUNTU-CVE-2026-41416.