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.
Published: 2026-07-09
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 15 Jul 2026 05:30:00 +0000

Type Values Removed Values Added
Title Stack-based Buffer Overflow in Tenda CP3 RTSP Service Leading to Denial of Service

Mon, 13 Jul 2026 21:15:00 +0000

Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Enables Remote Denial of Service

Mon, 13 Jul 2026 01:45:00 +0000

Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Enables Remote Denial of Service

Sun, 12 Jul 2026 13:45:00 +0000

Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Allowing Remote Denial of Service
Weaknesses CWE-120

Fri, 10 Jul 2026 18:30:00 +0000

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'}


Fri, 10 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Title Tenda CP3 RTSP Buffer Overflow Allowing Remote Denial of Service
Weaknesses CWE-120

Thu, 09 Jul 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda cp3
Vendors & Products Tenda
Tenda cp3

Thu, 09 Jul 2026 17:15:00 +0000

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

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-10T17:28:02.194Z

Reserved: 2026-06-08T00:00:00.000Z

Link: CVE-2026-51601

cve-icon Vulnrichment

Updated: 2026-07-10T17:24:50.920Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-16T20:30:05Z

Weaknesses