CVE-2025-63456 Memory corruption in n/a
Attackers can cause a Denial of Service on Tenda AX-1803 routers by sending a crafted request to the SetSysTimeCfg function.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-63456?
CVE-2025-63456 is a medium-severity memory corruption vulnerability in Tenda Ax1803 Firmware, published on 10 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Tenda AX-1803 v1.0.0.1 was discovered to contain a stack overflow via the time parameter in the SetSysTimeCfg function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.
Which versions are affected by CVE-2025-63456?
It affects 1 product.
Products include Tenda Ax1803 Firmware.
How do I fix CVE-2025-63456?
No fix has been published for CVE-2025-63456 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-2025-63456 being exploited?
There is no known exploitation of CVE-2025-63456 in the wild and no public exploit code.
Other vulnerabilities in Tenda Ax1803 Firmware
Sources
Also known as GHSA-34p8-gxhp-7h8f.