CVE-2025-50402

CRITICALNVD 9.89.8—Elevated

9.8

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

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 27.2%
KEV: Not listed

Published

November 26, 2025

Last Modified

January 2, 2026

Advisory Details (1)

Auto-updated Jun 9, 2026

No patch confirmed yet.

generic

IOT-vul/FAST/FAC1200R/2 at main · sezangel/IOT-vul · GitHub

https://github.com/sezangel/IOT-vul/tree/main/FAST/FAC1200R/2

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 11× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-16 17:52 UTCEPSS rescore
2026-06-16 17:52 UTCEPSS rescore
2026-06-15 17:48 UTCEPSS rescore
2026-06-14 23:17 UTCEPSS rescore
2026-06-13 23:00 UTCEPSS rescore
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2026-06-10 22:18 UTCEPSS rescore
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2026-06-10 13:22 UTCEPSS rescore
2026-06-08 14:16 UTCEPSS rescore
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2026-06-07 15:24 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
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2026-06-04 13:12 UTCEPSS rescore
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2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-05-31 00:16 UTCEPSS rescore

Show 4 more

2026-05-31 00:16 UTCEPSS rescore
2026-05-29 18:50 UTCEG score recompute
2026-05-29 18:49 UTCGHSA enrichment
2026-05-29 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-50402?

CVE-2025-50402 is a critical vulnerability published on November 26, 2025. FAST FAC1200R F400FAC1200RQ is vulnerable to Buffer Overflow in the function sub80435780 via the parameter string facpassword.

When was CVE-2025-50402 disclosed?

CVE-2025-50402 was first published in the National Vulnerability Database on November 26, 2025, with the most recent update on January 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-50402 actively exploited?

CVE-2025-50402 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-50402?

CVE-2025-50402 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-50402?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-50402, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-50402

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

IOT-vul/FAST/FAC1200R/2 at main · sezangel/IOT-vul · GitHub

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-50402?

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Advisory Details (1)

Frequently asked(5)

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