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Vulnerabilities

Vulnerability · CVE-2025-4561

The KFOX from KingFor has an Arbitrary File Upload vulnerability, allowing remote attackers with regular privilege to upload and execute web shell backdoors, thereby enabling arbit

Published May 12, 2025 · catalog updated May 12, 2025 · Kinfor KFOX

Check if you run it

No confirmed exploitation is on record for CVE-2025-4561. EPSS is 0.73%. Act only if a listed version of Kinfor KFOX is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.73%
Remediation
Vendor / distro source
Affected products
vendor Kinfor KFOX 0 ≤2.6

The KFOX from KingFor has an Arbitrary File Upload vulnerability, allowing remote attackers with regular privilege to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Kinfor KFOX 0 ≤2.60 ≤2.6

How to fix CVE-2025-4561

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-4561. EPSS is 0.73%. Act only if a listed version of Kinfor KFOX is installed.

Which versions are affected?

Compare what you have installed with Kinfor KFOX 0 ≤2.6 0 ≤2.6. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.73%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2025 · EUVD

    Detected

    The KFOX from KingFor has an Arbitrary File Upload vulnerability, allowing remote attackers with regular privilege to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

  2. May 12, 2025 · EUVD

    Updated

    The KFOX from KingFor has an Arbitrary File Upload vulnerability, allowing remote attackers with regular privilege to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

Sources

  • CVE.orgVulnerability recordCVE-2025-4561

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-4561

    30-day exploitation probability 0.7%

    first.org
  • EUVDVulnerability recordEUVD-2025-14319

    The KFOX from KingFor has an Arbitrary File Upload vulnerability, allowing remote attackers with regular privilege to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.