Is CVE-2025-4556 in the CISA KEV catalog?

No. CVE-2025-4556 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-4556?

CVE-2025-4556 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2025-4556?

CVE-2025-4556 has an EPSS score of 0.63% (46th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2025-4556

CRITICAL

9.8

CVSS v3

NVD

Description

The web management interface of Okcat Parking Management Platform from ZONG YU has an Arbitrary File Upload vulnerability, allowing unauthenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

CWE-434Unrestricted File Upload

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.63%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-12.