What is CVE-2025-3709?

CVE-2025-3709 is a critical-severity vulnerability in Flowring Agentflow, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2025-05-02.

How severe is CVE-2025-3709?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Flowring Agentflow

CVE-2025-3709

Agentflow from Flowring Technology has an Account Lockout Bypass vulnerability, allowing unauthenticated remote attackers to exploit this vulnerability to perform password brute force attack.

Published 2025-05-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (44.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.000

Affected products

Flowring Agentflow — versions 4.0
Flowring Technology Agentflow — versions 4.0

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

References

www.twcert.org.tw/tw/cp-132-10091-12462-1.html (Third Party Advisory, third-party-advisory)
www.twcert.org.tw/en/cp-139-10090-112f7-2.html (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2025-3709?: CVE-2025-3709 is a critical-severity vulnerability in Flowring Agentflow, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2025-05-02.
How severe is CVE-2025-3709?: Critical severity. CVSS v3 base score is 9.8 out of 10.