Quick answers
- Is CVE-2024-51313 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2024-51313 being exploited in the wild.
- How severe is CVE-2024-51313?
- Informational severity, published 20 July 2026.
- Which products and versions are affected?
- Tenda TX9 Pro V22.03.02.20.
- Is there a fix for CVE-2024-51313?
- 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-2024-51313 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2024-51313?
- Check whether you run Tenda TX9 Pro 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 vulnerability exists in the Tenda TX9 Pro firmware version V22.03.02.20. The issue is located within the 'httpd' binary, specifically in the 'sub_4335DC' function (called by 'sub_4337EC' or 'sub_42EA38' depending on the specific firmware build) when processing the 'list' parameter via a POST request to '/goform/SetNetControlList' or '/goform/SetVirtualServerCfg'. The vulnerability is caused by an unsafe 'strcpy' operation that copies user-controlled input into a fixed-size stack buffer without length validation. A remote attacker can exploit this by sending a large payload in the 'list' parameter to overwrite the stack, potentially leading to arbitrary code execution or a Denial of Service (DoS).
Affected products
- Tenda TX9 Pro V22.03.02.20
Timeline
- 2024-10-21: disclosed: Initial researcher disclosure on Gitee
- 2026-07-20: advisory: CVE published to NVD dataset