CVE-2025-9525: e1700 Buffer Overflow — Exploit

Description

A flaw has been found in Linksys E1700 1.0.0.4.003. Affected by this vulnerability is the function setWan of the file /goform/setWan. This manipulation of the argument DeviceName/lanIp causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

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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
linksys	e1700_firmware	All
linksys	e1700	All

References

Exploits

https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_58/58.md https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_58/58.md#poc

Other References

https://vuldb.com/?ctiid.321542 https://vuldb.com/?id.321542 https://vuldb.com/?submit.634824 https://www.linksys.com/

Frequently Asked Questions

What is CVE-2025-9525? +

A flaw has been found in Linksys E1700 1.0.0.4.003. Affected by this vulnerability is the function setWan of the file /goform/setWan. This manipulation of the argument DeviceName/lanIp causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-9525? +

CVE-2025-9525 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-2025-9525? +

CVE-2025-9525 affects products from linksys, specifically: e1700, e1700_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-9525? +

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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