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CVE-2025-53399

In Sipwise rtpengine before 13.4.1.1, an origin-validation error in the endpoint-learning logic...

6.9 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

7.17%Up 7.1 points since Aug 1, 2025
90%50%10%1%

What each source reports

CVE List Score used 6.9

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.

Record
CVE-2025-53399
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:L/SI:L/SA:L
Weakness
CWE-346
Updated
2026-11-02
EUVDEUVD-2025-23331 6.9

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.

Record
EUVD-2025-23331
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:L/SI:L/SA:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-9m93-62q8-9jmx 6.9

In Sipwise rtpengine before 13.4.1.1, an origin-validation error in the endpoint-learning logic...

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.

Record
GHSA-9m93-62q8-9jmx
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-346
Updated
2026-11-02
NVD 6.9

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.

Record
CVE-2025-53399
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness
CWE-346
Updated
2026-11-02
OSV 6.9

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.

Record
CVE-2025-53399
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:L/SI:L/SA:L
Weakness
CWE-346
Updated
2026-11-02
OSVDEBIAN-CVE-2025-53399 6.9

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.

Record
DEBIAN-CVE-2025-53399
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-02
OSVUBUNTU-CVE-2025-53399 6.9

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.

Record
UBUNTU-CVE-2025-53399
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:L/SI:L/SA:L
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
rtpengine
Debian:12
before 10.5.3.5-1+deb12u1, plus listed versions
10.5.3.5-1
10.5.3.5-1+deb12u1
rtpengine
Debian:13
All versions, plus listed versions
12.5.1.31-112.5.1.35-112.5.1.38-112.5.1.45-112.5.1.46-1
Show 17 moreShow less
13.5.1.1-113.5.1.10-113.5.1.13-113.5.1.2-113.5.1.3-113.5.1.4-113.5.1.6-113.5.1.7-113.5.1.8-113.5.1.9-126.0.1.10-126.0.1.13-126.0.1.14-126.0.1.15-126.0.1.19-126.0.1.20-126.0.1.21-1
None known
rtpengine
Debian:14
before 12.5.1.35-1, plus listed versions
12.5.1.31-1
12.5.1.35-1
rtpengine
Ubuntu:24.04:LTS
All versions, plus listed versions
10.5.5.2-111.5.1.11-111.5.1.14-111.5.1.18-111.5.1.18-1build1
Show 5 moreShow less
11.5.1.18-1build411.5.1.18-1build511.5.1.18-1ubuntu111.5.1.18-1ubuntu1.111.5.1.18-1ubuntu1.2
None known
rtpengine
Ubuntu:25.10
All versions, plus listed versions
12.5.1.22-112.5.1.31-112.5.1.35-112.5.1.38-1
None known
rtpengine
Ubuntu:26.10
All versions, plus listed versions
13.5.1.4-126.0.1.14-126.0.1.15-126.0.1.21-1
None known
rtpengine
Ubuntu:26.04:LTS
All versions, plus listed versions
12.5.1.38-113.5.1.1-113.5.1.2-113.5.1.3-113.5.1.3-1build113.5.1.4-1
None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-53399 is a medium vulnerability (CVSS 6.9) in Sipwise Rtpengine, published August 1, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.17%, the 94th percentile. Fixed in rtpengine 10.5.3.5-1+deb12u1.

References

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