CVE-2026-51601

Published Jul 9, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Tenda CP3 V3.0 firmware V31.1.9.91 contains a stack-based buffer overflow in the RTSP service. The device fails to validate the length of the clock= value in the Range header field when processing a PLAY request. An unauthenticated remote attacker who has completed a standard RTSP session handshake can send a PLAY request with an excessively long clock= value to cause the RTSP service to crash.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Stack-based Buffer Overflow in Tenda CP3 RTSP Service
Type Values Removed Values Added
Title Stack-based Buffer Overflow in Tenda CP3 RTSP Service
Type Values Removed Values Added
Title Stack-based Buffer Overflow in Tenda CP3 RTSP Service Leading to Denial of Service
Type Values Removed Values Added
Title Stack-based Buffer Overflow in Tenda CP3 RTSP Service Leading to Denial of Service
Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Enables Remote Denial of Service
Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Enables Remote Denial of Service
Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Allowing Remote Denial of Service
Weaknesses CWE-120
Type Values Removed Values Added
Weaknesses CWE-121
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Allowing Remote Denial of Service
Weaknesses CWE-120
Type Values Removed Values Added
First Time appeared Tenda
Tenda cp3
Vendors & Products Tenda
Tenda cp3
Type Values Removed Values Added
Description Tenda CP3 V3.0 firmware V31.1.9.91 contains a stack-based buffer overflow in the RTSP service. The device fails to validate the length of the clock= value in the Range header field when processing a PLAY request. An unauthenticated remote attacker who has completed a standard RTSP session handshake can send a PLAY request with an excessively long clock= value to cause the RTSP service to crash.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jul 10, 2026, 5:28 PM
Reserved
Jun 8, 2026, 12:00 AM
Status
Deferred
Published
Jul 9, 2026, 5:16 PM
Modified
Jul 10, 2026, 6:16 PM