CVE-2025-11327: ac18 Buffer Overflow — Exploit

Description

A security vulnerability has been detected in Tenda AC18 15.03.05.19(6318). This vulnerability affects unknown code of the file /goform/SetUpnpCfg. The manipulation of the argument upnpEn leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may 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	ac18_firmware	All
tenda	ac18	All

References

Exploits

https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/AC18/SetUpnpCfg.md

Other References

https://vuldb.com/?ctiid.327210 https://vuldb.com/?id.327210 https://vuldb.com/?submit.664532 https://www.tenda.com.cn/

Frequently Asked Questions

What is CVE-2025-11327? +

A security vulnerability has been detected in Tenda AC18 15.03.05.19(6318). This vulnerability affects unknown code of the file /goform/SetUpnpCfg. The manipulation of the argument upnpEn leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-11327? +

CVE-2025-11327 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-2025-11327? +

CVE-2025-11327 affects products from tenda, specifically: ac18, ac18_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-11327? +

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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