CVE-2025-11676 UPnP DOS in TL-WR940N V6
Unauthenticated adjacent attackers can cause a denial of service on TP-Link TL-WR940N V6 routers via improper input validation in UPnP modules.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11676?
CVE-2025-11676 is a high-severity denial of service vulnerability in TP-Link System Inc. TL-WR940N V6, published on 20 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper input validation vulnerability in TP-Link System Inc. TL-WR940N V6 (UPnP modules), which allows unauthenticated adjacent attackers to perform DoS attack. This issue affects TL-WR940N V6 <= Build 220801.
Weakness: CWE-20
Which versions are affected by CVE-2025-11676?
How do I fix CVE-2025-11676?
No fix has been published for CVE-2025-11676 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-11676 being exploited?
There is no known exploitation of CVE-2025-11676 in the wild and no public exploit code.
Sources
Also known as GHSA-ppr2-rx8w-xw63.