Origin-Validation Error in Sipwise RTP Engine Allows Media Stream Interception

CVE-2025-53399

What is CVE-2025-53399?

CVE-2025-53399 is a significant vulnerability affecting the Sipwise RTP Engine, which is a media relay service for real-time communication applications. This vulnerability stems from an origin-validation error in the endpoint-learning logic of the engine's media-relay core, permitting remote attackers to manipulate or intercept RTP (Real-time Transport Protocol) and SRTP (Secure Real-time Transport Protocol) media streams. The potential for such exploitation poses a severe threat to organizations relying on the Sipwise RTP Engine for secure and reliable communication, as attackers could eavesdrop on sensitive media transmissions or inject malicious media streams, compromising the integrity and confidentiality of communications. The remediation efforts included version 13.4.1.1 that introduces measures to limit exposure and enhance security against such attacks.

Potential Impact of CVE-2025-53399

1. Media Stream Interception: The primary impact of this vulnerability is the risk of unauthorized access to streaming media, which could allow attackers to listen in on or capture sensitive audio or video communications. This can lead to significant data breaches, especially in industries where confidentiality is paramount.

2. Injection of Malicious Media: Attackers could also exploit this vulnerability to inject malicious media streams into ongoing communications. This can cause misinformation, manipulation of a communication session, or deployment of harmful content, potentially leading to broader security incidents within an organization.

3. Reputational Damage and Regulatory Consequences: Exploitation of this vulnerability could result in severe reputational damage for organizations, particularly if sensitive information is leaked or if customer trust is eroded. Additionally, organizations may face regulatory repercussions and compliance issues if breaches expose private or protected information, further complicating their operational landscape.

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