CVE-2025-4356 Tenda DAP-1520 Authentication storage mod_graph_auth_uri_handler stack-based overflow
A remote attacker can trigger a stack-based buffer overflow in the authentication handler of the Tenda DAP-1520, potentially leading to arbitrary code execution.
- 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-2025-4356?
CVE-2025-4356 is a high-severity memory corruption vulnerability in Tenda DAP-1520, published on 6 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02. It has been declared as critical. This vulnerability affects the function mod_graph_auth_uri_handler of the file /storage of the component Authentication Handler. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-4356?
It affects 1 product.
Products include Dlink Dap-1520 Firmware.
How do I fix CVE-2025-4356?
No fix has been published for CVE-2025-4356 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-2025-4356 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4356 exists.
Other vulnerabilities in Tenda DAP-1520
Sources
Also known as GHSA-2g45-3h8m-p4q4.