CVE-2024-0540 Tenda W9 httpd formOfflineSet stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda W9 router's httpd service via the ssidIndex parameter, potentially leading to code execution or denial of service.
- 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-2024-0540?
CVE-2024-0540 is a medium-severity memory corruption vulnerability in Tenda W9, published on 15 Jan 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Tenda W9 1.0.0.7(4456). It has been classified as critical. Affected is the function formOfflineSet of the component httpd. 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-250710 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-2024-0540?
It affects 1 product.
Products include Tenda W9 Firmware.
How do I fix CVE-2024-0540?
No fix has been published for CVE-2024-0540 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-2024-0540 being exploited?
There is no known exploitation of CVE-2024-0540 in the wild and no public exploit code.
Other vulnerabilities in Tenda W9
Sources
Also known as GHSA-cqrr-xcm3-hjp6.