Quick answers
- Is CVE-2026-51604 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-51604 being exploited in the wild.
- How severe is CVE-2026-51604?
- Informational severity, with a CVSS score of 7.5, published 9 July 2026.
- Which products and versions are affected?
- Tenda CP3 V31.1.9.91.
- Is there a fix for CVE-2026-51604?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-51604 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-51604?
- Check whether you run Tenda CP3 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A stack-based buffer overflow exists within the RTSP service of the Tenda CP3 V3.0 security camera running firmware version V31.1.9.91. The vulnerability is triggered when the service processes a specially crafted RTSP 'PLAY' request. An unauthenticated remote attacker can exploit this by sending a malicious packet over the network to the device. Successful exploitation results in a crash of the RTSP service or the entire device, leading to a denial-of-service (DoS) condition. While the primary impact is availability, stack overflows can sometimes lead to remote code execution depending on the presence of modern exploit mitigations.
Affected products
- Tenda CP3 V3.0 V31.1.9.91
Timeline
- 2026-07-09: disclosed
- 2026-07-09: advisory