CVE-2025-50402 Memory corruption in n/a
A buffer overflow in the FAST FAC1200R router allows attackers to execute arbitrary code or cause a denial of service via the fac_password 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-2025-50402?
CVE-2025-50402 is a critical memory corruption vulnerability in n/a, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FAST FAC1200R F400_FAC1200R_Q is vulnerable to Buffer Overflow in the function sub_80435780 via the parameter string fac_password.
Weakness: CWE-120
Which versions are affected by CVE-2025-50402?
It affects 1 product.
Products include Fastcom Fac1200r Firmware.
How do I fix CVE-2025-50402?
No fix has been published for CVE-2025-50402 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-2025-50402 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-50402 exists.
Other vulnerabilities in n/a
Sources
Also known as GHSA-qvcp-3f2m-qjq3.