CVE-2025-1851 Tenda AC7 SetFirewallCfg formSetFirewallCfg stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the firewall configuration handler, potentially leading to arbitrary code execution on Tenda AC7 routers.
- 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-2025-1851?
CVE-2025-1851 is a high-severity memory corruption vulnerability in Tenda Ac7 Firmware, published on 3 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability, which was classified as critical, was found in Tenda AC7 up to 15.03.06.44. This affects the function formSetFirewallCfg of the file /goform/SetFirewallCfg. The manipulation of the argument firewallEn leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-1851?
It affects 1 product.
Products include Tenda Ac7 Firmware.
How do I fix CVE-2025-1851?
No fix has been published for CVE-2025-1851 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-2025-1851 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-1851 exists.
Other vulnerabilities in Tenda Ac7 Firmware
Sources
Also known as GHSA-cwwg-82jm-w98g.