Vulnerability · Published Aug 27, 2025 · Assigned by VulDB

CVE-2025-9525Linksys E1700 setWan stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in E1700 from Linksys. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.5%top 25.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Linksys	E1700	1.0.0.4.003

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-321542 | Linksys E1700 setWan stack-based overflow vdb-entry, technical-description
VDB-321542 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #634824 | Linksys E1700 E1700(1.0.0.4.003) Stack-based Buffer Overflow third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_58/58.md related
https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_58/58.md#poc exploit
https://www.linksys.com/ product