Vulnerability · Published Apr 24, 2026 · Assigned by GitHub_M

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

High 8.1

In plain English

A high-severity integer overflow in pjproject from pjsip. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)8.1High
Exploit odds (30 days)0.3%top 79.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:14asterisk1:22.10.0+dfsg+~cs6.17.60671434-1DEBIAN-CVE-2026-41416
Ubuntu:22.04:LTSasteriskno fix listedUBUNTU-CVE-2026-41416
Ubuntu:24.04:LTSasteriskno fix listedUBUNTU-CVE-2026-41416
Ubuntu:25.10asteriskno fix listedUBUNTU-CVE-2026-41416
Ubuntu:26.04:LTSasteriskno fix listedUBUNTU-CVE-2026-41416
Ubuntu:26.10asteriskno fix listedUBUNTU-CVE-2026-41416

Affected products (as reported)

VendorProductVersions
pjsip pjproject < 2.17

Weakness: CWE-190 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

References