CVE-2025-11386: ac15 Buffer Overflow — Exploit

Description

A vulnerability was found in Tenda AC15 15.03.05.18. The impacted element is an unknown function of the file /goform/SetDDNSCfg of the component POST Parameter Handler. The manipulation of the argument ddnsEn results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
tenda	ac15_firmware	All
tenda	ac15	All

References

Exploits

https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/AC15/SetDDNSCfg.md

Other References

https://vuldb.com/?ctiid.327313 https://vuldb.com/?id.327313 https://vuldb.com/?submit.664969 https://www.tenda.com.cn/

Frequently Asked Questions

What is CVE-2025-11386? +

A vulnerability was found in Tenda AC15 15.03.05.18. The impacted element is an unknown function of the file /goform/SetDDNSCfg of the component POST Parameter Handler. The manipulation of the argument ddnsEn results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-11386? +

CVE-2025-11386 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-11386? +

CVE-2025-11386 affects products from tenda, specifically: ac15, ac15_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-11386? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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