CVE-2025-50399
CriticalSummary
FAST FAC1200R router (F400_FAC1200R_Q) is vulnerable to buffer overflow in function sub_80435780 via the password parameter.
Risk Assessment
Similar to CVE-2025-50402, an attacker could exploit this to execute arbitrary code or cause a crash, potentially leading to full device compromise.
Recommendation
It is recommended to update the router firmware to the latest version if available and restrict access to the administrative interface.
Other vulnerabilities in FAST FAC1200R
See all- CVE-2026-101038Critical
A vulnerability was determined in FAST FAC1200R version 5.0_20201119_1.0.2 in the MmtAtePrase function of the MmtAtePrase Parser component. Manipulation causes a stack-based buffer overflow, and remote exploitation is possible. The exploit has been publicly disclosed and may be utilized; the vendor did not respond to the disclosure.
- CVE-2026-101037Critical
A vulnerability was found in FAST FAC1200R version 5.0_20201119_1.0.2 in the parse_advertisement_frame function of the devdiscover Service component. Manipulation results in a stack-based buffer overflow, and the attack may be launched remotely. The exploit has been made public and could be used; the vendor did not respond to the disclosure.
- CVE-2025-50402Critical
FAST FAC1200R router (F400_FAC1200R_Q) is vulnerable to buffer overflow in function sub_80435780 via the string parameter fac_password.
Original NVD description (English source)
FAST FAC1200R F400_FAC1200R_Q is vulnerable to Buffer Overflow in the function sub_80435780 via the parameter password.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS