Linksys E1700 setWan stack-based overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linksys | E1700 | 1.0.0.4.003 | — | No fix listed | CNA |
- E1700 VendorLinksys Affected 1.0.0.4.003 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9525
- 2026-10-03 Alias added: GHSA-3vf7-954m-xhg4
References
More Linksys E1700 Firmware vulnerabilities
- TI-2025-08732 Linksys E1700 QoSSetup stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-08731 Linksys E1700 setSysAdm stack-based overflow CVSS 4.0HIGH 8.7
- TI-2025-08733 Linksys E1700 systemCommand os command injection CVSS 4.0MEDIUM 5.1
- TI-2024-15057 An issue was discovered in Linksys Router E1700 version 1.0.04 (build 3), allows… CVSS 3.1HIGH 8.0
- TI-2024-15056 An issue was discovered in Linksys Router E1700 1.0.04 (build 3), allows authenticated… CVSS 3.1MEDIUM 6.1
Sources
- CVE-2025-9525 · CVE Program
- CVE-2025-9525 · NVD
- FIRST EPSS
- GHSA-3vf7-954m-xhg4 · GitHub Advisory Database · CC BY 4.0
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