Is CVE-2026-6120 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-6120 being exploited in the wild.

How severe is CVE-2026-6120?

High severity, with a CVSS score of 8.8, published 12 April 2026.

Is there a fix for CVE-2026-6120?

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-2026-6120 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-6120?

Check whether you run Tenda F451 or Tenda F451 Firmware. 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-2026-6120: Tenda F451 stack buffer overflow in fromDhcpListClient

CVE-2026-6120 · Severity: high · CVSS 8.8 · Published 2026-04-12

A vulnerability exists in the Tenda F451 wireless router, a device used to provide internet connectivity for homes and small offices. An attacker can exploit this flaw to crash the device or potentially take full control of it by sending specially crafted data to the router's management interface. This could lead to a complete loss of internet service or unauthorized access to the network.

Technologies: Tenda F451, Tenda F451 Firmware. Vendors: Tenda.

Quick answers

Is CVE-2026-6120 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-6120 being exploited in the wild.
How severe is CVE-2026-6120?: High severity, with a CVSS score of 8.8, published 12 April 2026.
Which products and versions are affected?: Tenda F451 1.0.0.7.
Is there a fix for CVE-2026-6120?: 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-2026-6120 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-6120?: Check whether you run Tenda F451 or Tenda F451 Firmware. 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 F451 router running firmware version 1.0.0.7. The flaw is located within the 'fromDhcpListClient' function in the '/goform/DhcpListClient' file of the 'httpd' component. The vulnerability is triggered by improper validation of the 'page' argument, allowing a remote attacker with low privileges to overflow the stack. Successful exploitation can lead to remote code execution (RCE) or a denial of service (DoS) condition. A public exploit is reportedly available.

Affected products

Tenda F451 1.0.0.7

Timeline

2026-04-12: advisory: Initial disclosure by VulDB/NVD

References

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