Is CVE-2026-10188 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-10188 being exploited in the wild.

How severe is CVE-2026-10188?

High severity, with a CVSS score of 8.8, published 31 May 2026.

Is there a fix for CVE-2026-10188?

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-2026-10188 attacked?

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

Am I affected by CVE-2026-10188?

Check whether you run Tenda W12 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-2026-10188: Tenda W12 stack buffer overflow in cgistaKickOff

CVE-2026-10188 · Severity: high · CVSS 8.8 · Published 2026-05-31

A security vulnerability has been identified in the Tenda W12 wireless router, a device used to provide internet connectivity in homes and small offices. An attacker can exploit this flaw to crash the device or potentially take full control of it by sending a specially crafted request. This could lead to a complete loss of internet service or unauthorized access to the network traffic passing through the router.

Technologies: Tenda W12. Vendors: Tenda.

Quick answers

Is CVE-2026-10188 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-10188 being exploited in the wild.
How severe is CVE-2026-10188?: High severity, with a CVSS score of 8.8, published 31 May 2026.
Which products and versions are affected?: Tenda W12 3.0.0.7(4763).
Is there a fix for CVE-2026-10188?: 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-2026-10188 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10188?: Check whether you run Tenda W12 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 (CWE-121) exists in the Tenda W12 router firmware version 3.0.0.7(4763). The flaw is located in the 'cgistaKickOff' function within the '/bin/httpd' binary. The vulnerability is triggered by insufficient validation of the 'staMac' parameter, allowing 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 remote code execution (RCE) or a denial-of-service (DoS) condition. Public exploit code has reportedly been released.

Affected products

Tenda W12 3.0.0.7(4763)

Timeline

2026-05-31: disclosed
2026-05-31: advisory

References

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