CVE-2025-53399 Security feature bypass in rtpengine
Remote attackers can inject or intercept RTP/SRTP media streams due to origin-validation errors in Sipwise rtpengine's endpoint-learning logic.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-53399?
CVE-2025-53399 is a medium-severity vulnerability in Sipwise rtpengine, published on 1 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Sipwise rtpengine before 13.4.1.1, an origin-validation error in the endpoint-learning logic of the media-relay core allows remote attackers to inject or intercept RTP/SRTP media streams via RTP packets (except when the relay is configured for strict source and learning disabled). Version 13.4.1.1 fixes the heuristic mode by limiting exposure to the first five packets, and introduces a recrypt flag that fully prevents SRTP attacks when both mitigations are enabled.
Weakness: CWE-346
Which versions are affected by CVE-2025-53399?
How do I fix CVE-2025-53399?
Upgrade to a fixed version.
Is CVE-2025-53399 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-53399 exists.
Sources
Also known as DEBIAN-CVE-2025-53399, GHSA-9m93-62q8-9jmx, UBUNTU-CVE-2025-53399.