Tp Link · Tp-Link Tl-Wr940N · CVE-2025-6151
**Name of the Vulnerable Software and Affected Versions**
TP-Link TL-WR940N version V4
**Description**
A critical issue has been found in the TP-Link TL-WR940N V4, affecting some unknown functionality of the file /userRpm/WanSlaacCfgRpm.htm. The manipulation of the `dnsserver1` argument leads to a buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
**Recommendations**
As a temporary workaround, consider restricting access to the `/userRpm/WanSlaacCfgRpm.htm` file until a patch is available.
Avoid using the `dnsserver1` argument in the affected functionality until the issue is resolved.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.