CVE-2025-50402

CRITICAL
Published Nov 26, 2025 Modified Jan 2, 2026 CWE-120

Description

FAST FAC1200R F400_FAC1200R_Q is vulnerable to Buffer Overflow in the function sub_80435780 via the parameter string fac_password.

CVSS v3.1 Score

9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor Product
fastcom fac1200r_firmware
fastcom fac1200r

References

Frequently Asked Questions

What is CVE-2025-50402? +
FAST FAC1200R F400_FAC1200R_Q is vulnerable to Buffer Overflow in the function sub_80435780 via the parameter string fac_password. It has a CVSS v3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2025-50402? +
CVE-2025-50402 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.
What products are affected by CVE-2025-50402? +
CVE-2025-50402 affects products from fastcom, specifically: fac1200r, fac1200r_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-50402? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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