Buffer Overflow Vulnerability in FAST FAC1200R Products
CVE-2025-50402

9.8CRITICAL

Key Information:

Vendor

FAST

Status
FAC1200R
Vendor
CVE Published:
26 November 2025

What is CVE-2025-50402?

The FAST FAC1200R F400_FAC1200R_Q exhibits a significant buffer overflow vulnerability within the function sub_80435780, specifically through the handling of the parameter string fac_password. This flaw could allow an attacker to manipulate the device's memory, potentially leading to unauthorized control or data leaks. It highlights the need for immediate patching and robust security practices in device management to mitigate risks associated with exploitation.

References

https://github.com/sezangel/IOT-vul/tree/main/FAST/FAC120...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.