SIPSorcery is a WebRTC, SIP, and VoIP library for C# and .NET. Prior to 10.0.9, RTPChannel.OnRTPPacketReceived and the STUNAttribute.ParseMessageAttributes, STUNXORAddressAttribute, and STUNAddressAttribute parsing path index untrusted bytes without sufficient length checks, while UdpReceiver.EndReceiveFrom closes the channel when those operations raise a non-socket exception. A remote party can send a single short RTP packet or malformed zero-to-seven-byte STUN address attribute to the shared RTP/ICE socket, including during ICE connectivity checks before DTLS or STUN MESSAGE-INTEGRITY verification, and terminate the active RTP or WebRTC media session. The attacker must reach or learn the advertised ephemeral RTP/ICE port, but no authentication or user interaction is required, and the impact is limited to availability. This issue is fixed in version 10.0.9.
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Thu, 17 Sep 2026 20:30:00 +0000
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Sipsorcery-org
Sipsorcery-org sipsorcery |
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Sipsorcery-org
Sipsorcery-org sipsorcery |
Tue, 15 Sep 2026 15:30:00 +0000
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ssvc
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Mon, 14 Sep 2026 21:00:00 +0000
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| Description | SIPSorcery is a WebRTC, SIP, and VoIP library for C# and .NET. Prior to 10.0.9, RTPChannel.OnRTPPacketReceived and the STUNAttribute.ParseMessageAttributes, STUNXORAddressAttribute, and STUNAddressAttribute parsing path index untrusted bytes without sufficient length checks, while UdpReceiver.EndReceiveFrom closes the channel when those operations raise a non-socket exception. A remote party can send a single short RTP packet or malformed zero-to-seven-byte STUN address attribute to the shared RTP/ICE socket, including during ICE connectivity checks before DTLS or STUN MESSAGE-INTEGRITY verification, and terminate the active RTP or WebRTC media session. The attacker must reach or learn the advertised ephemeral RTP/ICE port, but no authentication or user interaction is required, and the impact is limited to availability. This issue is fixed in version 10.0.9. | |
| Title | SIPSorcery: Malformed UDP packet on the RTP/ICE socket can remotely terminate a media session (DoS) | |
| Weaknesses | CWE-20 CWE-755 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-14T19:58:30.394Z
Updated: 2026-09-15T14:43:28.069Z
Reserved: 2026-06-15T20:07:02.185Z
Link: CVE-2026-54632
Updated: 2026-09-15T14:43:24.887Z
Status : Deferred
Published: 2026-09-14T20:16:47.010
Modified: 2026-09-30T17:51:56.193
Link: CVE-2026-54632
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