CVE-2025-29121 Memory corruption in n/a
A stack-based buffer overflow in the Tenda AC6 router allows attackers to execute arbitrary code or cause a denial of service via the timeZone parameter.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-29121?
CVE-2025-29121 is a high-severity memory corruption vulnerability in Tenda Ac6 Firmware, published on 20 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Tenda AC6 V15.03.05.16. The vulnerability affects the functionality of the /goform/fast_setting_wifi_set file form_fast_setting_wifi_set. Using the timeZone parameter causes a stack-based buffer overflow.
Weakness: CWE-121
Which versions are affected by CVE-2025-29121?
It affects 1 product.
Products include Tenda Ac6 Firmware.
How do I fix CVE-2025-29121?
No fix has been published for CVE-2025-29121 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-2025-29121 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29121 exists.
Other vulnerabilities in Tenda Ac6 Firmware
Sources
Also known as GHSA-v6jq-9h5f-2qcm.