Origin validation error in Sipwise rtpengine
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-346.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA rtpengine (Sipwise) Fixed in 13.4.1.1
Timeline
- 2026-10-02 Threatist record created from CVE-2025-53399
- 2026-10-03 Alias added: GHSA-9m93-62q8-9jmx
References
More Sipwise vulnerabilities
- TI-2024-18844 An Open Redirect vulnerability was found in Sipwise C5 NGCP Dashboard below mr11.5.1. CVSS 3.1LOW 3.1
- TI-2021-11692 Sipwise C5 NGCP www_csc version 3.6.4 up to and including platform NGCP CE mr3.8.13… CVSS 3.1HIGH 8.8
- TI-2021-11691 Sipwise C5 NGCP WWW Admin version 3.6.7 up to and including platform version NGCP CE 3.0… CVSS 3.1MEDIUM 5.4
- TI-2024-18845 An issue discovered in Sipwise C5 NGCP Dashboard below mr11.5.1 allows a low privileged… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2025-53399 · CVE Program
- CVE-2025-53399 · NVD
- FIRST EPSS
- GHSA-9m93-62q8-9jmx · GitHub Advisory Database · CC BY 4.0
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