CVE-2025-14654: ac20 Buffer Overflow — Exploit

Description

A vulnerability was identified in Tenda AC20 16.03.08.12. The affected element is the function formSetPPTPUserList of the file /goform/setPptpUserList of the component httpd. Such manipulation of the argument list leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might 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

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
tenda	ac20_firmware	All
tenda	ac20	All

References

Exploits

https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN12/AC20_SetPptpUserList.md

Other References

https://vuldb.com/?ctiid.336387 https://vuldb.com/?id.336387 https://vuldb.com/?submit.712899 https://www.tenda.com.cn/

Frequently Asked Questions

What is CVE-2025-14654? +

A vulnerability was identified in Tenda AC20 16.03.08.12. The affected element is the function formSetPPTPUserList of the file /goform/setPptpUserList of the component httpd. Such manipulation of the argument list leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-14654? +

CVE-2025-14654 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-2025-14654? +

CVE-2025-14654 affects products from tenda, specifically: ac20, ac20_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-14654? +

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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