CVE-2025-9251 Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 sta_wps_pin stack-based overflow

High 8.7 Published 20 Aug 2025 Updated 21 Aug 2025

Remote attackers can trigger a stack-based buffer overflow in the WPS PIN handler to execute arbitrary code on affected Linksys range extenders.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-9251?

CVE-2025-9251 is a high-severity memory corruption vulnerability in Linksys Re6250 Firmware, published on 20 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security flaw has been discovered in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. Affected is the function sta_wps_pin of the file /goform/sta_wps_pin. Performing manipulation of the argument Ssid results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-9251?

It affects 6 products.

Products include Linksys Re6250 Firmware, Linksys Re6300 Firmware, Linksys Re6350 Firmware, Linksys Re6500 Firmware, Linksys Re7000 Firmware, Linksys Re9000 Firmware.

How do I fix CVE-2025-9251?

No fix has been published for CVE-2025-9251 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-9251 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9251 exists.

All Linksys Re6250 Firmware vulnerabilities

Sources

Also known as GHSA-w6mv-m75x-233m.