CVE-2026-3044 Tenda AC8 Httpd Service UploadCfg webCgiGetUploadFile stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the Tenda AC8 router's Httpd service via the UploadCfg endpoint, potentially leading to 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-2026-3044?
CVE-2026-3044 is a high-severity memory corruption vulnerability in Tenda Ac8 Firmware, published on 23 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in Tenda AC8 16.03.34.06. This affects the function webCgiGetUploadFile of the file /cgi-bin/UploadCfg of the component Httpd Service. The manipulation of the argument boundary 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-2026-3044?
It affects 1 product.
Products include Tenda Ac8 Firmware.
How do I fix CVE-2026-3044?
No fix has been published for CVE-2026-3044 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-2026-3044 being exploited?
There is no known exploitation of CVE-2026-3044 in the wild and no public exploit code.
Other vulnerabilities in Tenda Ac8 Firmware
Sources
Also known as GHSA-3m9c-j7xc-gc2c.