CVE-2025-13258: ac20 Buffer Overflow — Exploit

Description

A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is an unknown function of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto results in buffer overflow. The attack can be launched remotely. The exploit is now public 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-120 CWE-120

Affected Products

Vendor	Product	Versions
tenda	ac20_firmware	All
tenda	ac20	All

References

Exploits

https://github.com/DavCloudz/cve/blob/main/Tenda/Tengda%20AC20%20Router%20WifiExtraSet%20Buffer%20Overflow%20Vulnerability.md https://github.com/DavCloudz/cve/blob/main/Tenda/Tengda%20AC20%20Router%20WifiExtraSet%20Buffer%20Overflow%20Vulnerability.md#poc

Other References

https://vuldb.com/?ctiid.332593 https://vuldb.com/?id.332593 https://vuldb.com/?submit.688716 https://www.tenda.com.cn/

Frequently Asked Questions

What is CVE-2025-13258? +

A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is an unknown function of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto results in buffer overflow. The attack can be launched remotely. The exploit is now public and may be used. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-13258? +

CVE-2025-13258 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-2025-13258? +

CVE-2025-13258 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-2025-13258? +

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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