Is CVE-2026-15693 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-15693 being exploited in the wild.

How severe is CVE-2026-15693?

High severity, with a CVSS score of 8.8, published 14 July 2026.

Is there a fix for CVE-2026-15693?

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-2026-15693 attacked?

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

Am I affected by CVE-2026-15693?

Check whether you run Tenda BE12 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-2026-15693: Tenda BE12 Pro stack buffer overflow in fromSafeMacFilter

CVE-2026-15693 · Severity: high · CVSS 8.8 · Published 2026-07-14

A security vulnerability exists in the Tenda BE12 Pro router, a device used for home and business networking. An attacker can exploit this flaw to cause the router to crash or potentially take full control of the device. This could lead to the monitoring of network traffic, theft of sensitive data, or the use of the router as a jumping-off point to attack other devices on the same network.

Technologies: Tenda BE12 Pro. Vendors: Tenda.

Quick answers

Is CVE-2026-15693 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-15693 being exploited in the wild.
How severe is CVE-2026-15693?: High severity, with a CVSS score of 8.8, published 14 July 2026.
Which products and versions are affected?: Tenda BE12 Pro 16.03.66.23.
Is there a fix for CVE-2026-15693?: 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-2026-15693 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-15693?: Check whether you run Tenda BE12 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 BE12 Pro router (firmware version 16.03.66.23) within the 'fromSafeMacFilter' function of the '/goform/SafeMacFilter' endpoint. The root cause is the unsafe use of 'sprintf' when processing the user-controlled 'page' parameter, which writes data into a fixed-size 256-byte buffer without length validation. An attacker can exploit this by sending a specially crafted POST request with an oversized 'page' parameter. Successful exploitation can lead to memory corruption, denial of service (DoS) by crashing the web server, or arbitrary code execution by overwriting the return address on the stack. While some reports suggest the attack is possible without authentication, the CVSS vector indicates low privileges may be required.

Affected products

Tenda BE12 Pro 16.03.66.23

Timeline

2026-06-11: disclosed: Vulnerability details and PoC shared on GitHub.
2026-07-14: advisory: CVE-2026-15693 published.

References

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