CVE-2025-69766 Memory corruption in n/a
A stack-based buffer overflow in the Tenda AX3 router allows remote attackers to execute arbitrary code via the formGetIptv function.
- 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-2025-69766?
CVE-2025-69766 is a critical memory corruption vulnerability in Tenda Ax3 Firmware, published on 21 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Tenda AX3 firmware v16.03.12.11 contains a stack-based buffer overflow in the formGetIptv function due to improper handling of the citytag stack buffer, which may result in memory corruption and remote code execution.
Weakness: CWE-121
Which versions are affected by CVE-2025-69766?
It affects 1 product.
Products include Tenda Ax3 Firmware.
How do I fix CVE-2025-69766?
No fix has been published for CVE-2025-69766 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-2025-69766 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-69766 exists.
Other vulnerabilities in Tenda Ax3 Firmware
Sources
Also known as GHSA-2w96-8922-g8xr.