What is CVE-2025-4557?

CVE-2025-4557 is a critical-severity vulnerability in Zong Yu Parking Management System, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2025-05-12.

How severe is CVE-2025-4557?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Zong Yu Parking Management System

CVE-2025-4557

The specific APIs of Parking Management System from ZONG YU has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to access specific APIs and operate system functions. These functions include opening gates and restarting the system.

Vulnerability class: Broken Authentication

Published 2025-05-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.9th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.9% 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: 0.005 · change: 0.000

Affected products

Zong Yu Parking Management System — versions 0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.twcert.org.tw/tw/cp-132-10112-5de7e-1.html (third-party-advisory)
www.twcert.org.tw/en/cp-139-10113-58c29-2.html (third-party-advisory)

Frequently asked questions

What is CVE-2025-4557?: CVE-2025-4557 is a critical-severity vulnerability in Zong Yu Parking Management System, classified under Missing Authentication for Critical Function. CVSS score: 9.1/10. Published 2025-05-12.
How severe is CVE-2025-4557?: Critical severity. CVSS v3 base score is 9.1 out of 10.