CVE-2025-13551 D-Link DIR-822K/DWR-M920 formWanConfigSetup buffer overflow
Remote attackers can exploit a buffer overflow in D-Link routers via the formWanConfigSetup interface to execute arbitrary code or escalate privileges.
- 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-2025-13551?
CVE-2025-13551 is a high-severity memory corruption vulnerability in D-Link DIR-822K, published on 23 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in D-Link DIR-822K and DWR-M920 1.00_20250513164613/1.1.50. The affected element is an unknown function of the file /boafrm/formWanConfigSetup. The manipulation of the argument submit-url leads to buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
Which versions are affected by CVE-2025-13551?
It affects 2 products.
Products include Dlink Dir-822k Firmware, Dlink Dwr-M920 Firmware.
How do I fix CVE-2025-13551?
No fix has been published for CVE-2025-13551 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-2025-13551 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13551 exists.
Other vulnerabilities in D-Link DIR-822K
- CVE-2025-13547 D-Link DIR-822K/DWR-M920 formDdns memory corruption
- CVE-2025-13548 D-Link DIR-822K/DWR-M920 formFirewallAdv buffer overflow
- CVE-2025-13549 D-Link DIR-822K formNtp sub_455524 buffer overflow
- CVE-2025-13550 D-Link DIR-822K/DWR-M920 formVpnConfigSetup buffer overflow
- CVE-2025-13552 D-Link DIR-822K/DWR-M920 formWlEncrypt buffer overflow
Sources
Also known as GHSA-x8rw-qwf8-38pg.