CVE-2025-4896 Tenda AC10 UserCongratulationsExec buffer overflow
Remote attackers can trigger a buffer overflow in the Tenda AC10 router via the getuid argument, 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-2025-4896?
CVE-2025-4896 is a high-severity memory corruption vulnerability in Tenda Ac10 Firmware, published on 18 May 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in Tenda AC10 16.03.10.13 and classified as critical. Affected by this issue is some unknown functionality of the file /goform/UserCongratulationsExec. The manipulation of the argument getuid leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
Which versions are affected by CVE-2025-4896?
It affects 1 product.
Products include Tenda Ac10 Firmware.
How do I fix CVE-2025-4896?
No fix has been published for CVE-2025-4896 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-2025-4896 being exploited?
There is no known exploitation of CVE-2025-4896 in the wild and no public exploit code.
Other vulnerabilities in Tenda Ac10 Firmware
Sources
Also known as GHSA-h27g-3gmj-f4j6.