What’s Vulnerable › Vulnerabilities

CVE-2026-110679: OpenSIPS rtpproxy rtpproxy_answer out-of-bounds

• Severity: high (CVSS 7.3 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: 2026-10-14 · updated 2026-10-15
• Weakness: CWE-119

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.

Affected products

• OpenSIPS: 3.6.0, 3.6.1, 3.6.2, 3.6.3, 3.6.4, 3.6.5 (+5)

References

• https://github.com/OpenSIPS/opensips/
• https://github.com/OpenSIPS/opensips/releases/tag/4.0.2
• https://github.com/OpenSIPS/opensips/security/advisories/GHSA-qv9x-v8jq-434w
• https://vuldb.com/cve/CVE-2026-110679
• https://vuldb.com/submit/1003897
• https://vuldb.com/vuln/419834
• https://vuldb.com/vuln/419834/cti

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