All vulnerabilities
CVE-2026-110679GHSA-qv9x-v8jq-434w

OpenSIPS rtpproxy rtpproxy_answer out-of-bounds

n/a OpenSIPS
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.31%Chance of exploitation activity in the next 30 days, higher than 22% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.0.2Also 3.6.9GitHub
Published14 Oct 2026Updated 16 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

A vulnerability was determined in OpenSIPS up to 3.6.8/4.0.1. The impacted element is the function rtpproxy_offer/rtpproxy_answer of the component rtpproxy. This manipulation causes out-of-bounds read. The attack may be initiated remotely. Upgrading to version 3.6.9 and 4.0.2 is sufficient to resolve this issue. It is advisable to upgrade the affected component.

Text from CVE List

Affected versions 15

  • OpenSIPSaffected: 3.6.0CVE List
  • OpenSIPSaffected: 3.6.1CVE List
  • OpenSIPSaffected: 3.6.2CVE List
  • OpenSIPSaffected: 3.6.3CVE List
  • OpenSIPSaffected: 3.6.4CVE List
  • OpenSIPSaffected: 3.6.5CVE List
  • OpenSIPSaffected: 3.6.6CVE List
  • OpenSIPSaffected: 3.6.7CVE List
  • OpenSIPSaffected: 3.6.8CVE List
  • OpenSIPSaffected: 4.0.0CVE List
  • OpenSIPSaffected: 4.0.1CVE List
  • OpenSIPSunaffected: 3.6.9CVE List
  • OpenSIPSunaffected: 4.0.2CVE List
  • opensips, c>= 4.0.0, < 4.0.2GitHub
  • opensips, c>= 3.6.0, < 3.6.9GitHub

References 7