Is CVE-2024-51315 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2024-51315 being exploited in the wild.

How severe is CVE-2024-51315?

Informational severity, with a CVSS score of 7.5, published 20 July 2026.

Is there a fix for CVE-2024-51315?

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-2024-51315 attacked?

It is attacked over the network, in device firmware.

Am I affected by CVE-2024-51315?

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.

CVE-2024-51315: Tenda TX9 Pro stack overflow in SetOnlineDevName

CVE-2024-51315 · Severity: info · CVSS 7.5 · Published 2026-07-20

A vulnerability exists in the Tenda TX9 Pro router, a device used to provide wireless internet connectivity. An attacker can send a specially crafted network request to the router's management interface to cause the device to crash or lock up. This results in a denial-of-service, requiring a manual restart to restore internet access and router functionality.

Technologies: Tenda TX9 Pro. Vendors: Tenda.

Quick answers

Is CVE-2024-51315 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2024-51315 being exploited in the wild.
How severe is CVE-2024-51315?: Informational severity, with a CVSS score of 7.5, published 20 July 2026.
Which products and versions are affected?: Tenda TX9 Pro V22.03.02.20.
Is there a fix for CVE-2024-51315?: 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-2024-51315 attacked?: It is attacked over the network, in device firmware.
Am I affected by CVE-2024-51315?: 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 overflow vulnerability exists in the 'httpd' binary of Tenda TX9 Pro firmware V22.03.02.20. The flaw is located within the 'sub_425964' function, which processes the 'mac' parameter from POST requests sent to '/goform/SetOnlineDevName'. This parameter is passed to the 'update_dev_name' function in 'libtd_server.so' without adequate length validation. An attacker can provide an oversized 'mac' string to trigger a stack overflow or hit a '__trap(0)' instruction, leading to a device hang or crash. This attack can be executed over the network via an unauthenticated POST request.

Affected products

Tenda TX9 Pro V22.03.02.20

Timeline

2024-10-21: other: Initial researcher write-up published on Gitee
2026-07-20: disclosed: CVE published to NVD

References

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