CVE-2025-50402: Buffer Overflow

Published Nov 26, 2025
·
Updated

FAST FAC1200R F400FAC1200RQ is vulnerable to Buffer Overflow in the function sub80435780 via the parameter string facpassword.

Affected Software

2 affected components
All of the following
Fastcom Fac1200r Firmware=f400_fac1200r_q
Fastcom Fac1200r

Event History

Nov 26, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-50402?

CVE-2025-50402 is classified as a high severity vulnerability due to the potential for remote code execution through buffer overflow.

2

How do I fix CVE-2025-50402?

To mitigate CVE-2025-50402, update the firmware of the Fastcom fac1200r device to the latest version provided by the vendor.

3

What systems are affected by CVE-2025-50402?

CVE-2025-50402 affects the Fastcom Fac1200r firmware version f400_fac1200r_q.

4

What is a buffer overflow in the context of CVE-2025-50402?

In the context of CVE-2025-50402, a buffer overflow occurs when the input parameter 'fac_password' exceeds the buffer's capacity, potentially allowing an attacker to execute arbitrary code.

5

Is the Fastcom Fac1200r hardware itself vulnerable due to CVE-2025-50402?

No, the hardware itself is not vulnerable; the vulnerability lies in the firmware version f400_fac1200r_q.

Contact

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