EUVD-2026-42649
GHSA-4gxm-xgrj-8mg2
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from Vendor (mitre) · only source for this CVE.
CVSS VectorVendor: mitre
Lifecycle Timeline
3DescriptionCVE.org
An improper input handling vulnerability in the RTSP service of Tenda CP3 V3.0 (firmware V31.1.9.91) causes the device to abruptly terminate the TCP connection with a RST packet when a request containing an oversized field value is received, without returning any RFC 2326-compliant error response. This behavior affects the request-line URL field and header field values across multiple RTSP request types.
AnalysisAI
Denial-of-service in the RTSP service of the Tenda CP3 V3.0 IP camera (firmware V31.1.9.91) lets remote unauthenticated attackers abruptly reset the streaming TCP connection by sending an RTSP request with an oversized field value. Rather than replying with an RFC 2326-compliant error, the service tears the connection down with a RST packet, indicating unsafe input handling in the RTSP parser that can disrupt video streaming. A public research report documenting the flaw exists on GitHub, but there is no CISA KEV listing and no confirmed active exploitation.
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Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
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