CVE-2025-6752: Linksys WRT1900ACS/EA7200/EA7450/EA7500 IGD Layer3Forwarding SetDefaultConnectionService stack-based overflow
A vulnerability has been found in Linksys WRT1900ACS, EA7200, EA7450 and EA7500 up to 20250619 and classified as critical. This vulnerability affects the function SetDefaultConnectionService of the file /upnp/control/Layer3Forwarding of the component IGD. The manipulation of the argument NewDefaultConnectionService leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-6752?
CVE-2025-6752 is classified as critical due to its potential impact on affected Linksys devices.
How do I fix CVE-2025-6752?
To mitigate CVE-2025-6752, update your Linksys device firmware to the latest version released after June 19, 2025.
Which devices are affected by CVE-2025-6752?
CVE-2025-6752 affects the Linksys WRT1900ACS, EA7200, EA7450, and EA7500 devices running firmware up to version 20250619.
What component is vulnerable in CVE-2025-6752?
The vulnerability in CVE-2025-6752 affects the SetDefaultConnectionService function in the Layer3Forwarding component of the IGD.
What are the consequences of the CVE-2025-6752 vulnerability?
Exploitation of CVE-2025-6752 may allow unauthorized manipulation of network settings, leading to potential security risks.