Is CVE-2026-6135 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-6135 being exploited in the wild.

How severe is CVE-2026-6135?

High severity, with a CVSS score of 8.8, published 13 April 2026.

Is there a fix for CVE-2026-6135?

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-2026-6135 attacked?

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

Am I affected by CVE-2026-6135?

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-2026-6135: Tenda F451 stack overflow in SetIpBind

CVE-2026-6135 · Severity: high · CVSS 8.8 · Published 2026-04-13

A security vulnerability has been identified in the Tenda F451 wireless router, a device used to provide internet connectivity for homes and small offices. An attacker could exploit this flaw to crash the router or potentially take full control of the device, leading to unauthorized access to network traffic or service disruptions. This issue is particularly concerning as technical details and exploit methods have been made public.

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

Quick answers

Is CVE-2026-6135 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-6135 being exploited in the wild.
How severe is CVE-2026-6135?: High severity, with a CVSS score of 8.8, published 13 April 2026.
Which products and versions are affected?: Tenda F451 1.0.0.7_cn_svn7958.
Is there a fix for CVE-2026-6135?: 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-2026-6135 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-6135?: 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 firmware version 1.0.0.7_cn_svn7958. The flaw is located within the 'fromSetIpBind' function in the '/goform/SetIpBind' component. The vulnerability is triggered by improper validation of the 'page' argument, which allows an attacker to overwrite the stack. While the attack requires low-level authentication (PR:L), it can be executed remotely over the network. Successful exploitation can lead to arbitrary code execution or a complete system crash (Denial of Service). Public exploit code is reportedly available.

Affected products

Tenda F451 1.0.0.7_cn_svn7958

Timeline

2026-04-13: advisory: Initial disclosure date

References

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