CVE-2024-4243 Tenda W9 wifiSSIDset formwrlSSIDset stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda W9 router's SSID setting function, 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-2024-4243?
CVE-2024-4243 is a high-severity memory corruption vulnerability in Tenda W9, published on 26 Apr 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability classified as critical has been found in Tenda W9 1.0.0.7(4456). Affected is the function formwrlSSIDset of the file /goform/wifiSSIDset. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-262134 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2024-4243?
It affects 1 product.
Products include Tenda W9 Firmware.
How do I fix CVE-2024-4243?
No fix has been published for CVE-2024-4243 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-2024-4243 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4243 exists.
Other vulnerabilities in Tenda W9
Sources
Also known as GHSA-5cp4-5pxh-47cm.