Is CVE-2025-53900 actively exploited?

CVE-2025-53900 has no public evidence of in-the-wild exploitation as of 2025-12-03.

What is the CVSS score for CVE-2025-53900?

CVE-2025-53900 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

How do I patch CVE-2025-53900?

Patch guidance is available from accellion security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-53900.

Which products are affected by CVE-2025-53900?

1 product: accellion kiteworks managed file transfer.

CVE-2025-53900 - remediation guidance & executive summary

Description

Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, an unfavourable definition of roles and permissions in Kiteworks MFT on managing Connections could lead to unexpected escalation of privileges for authorized users. This issue has been patched in version 9.1.0.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: none
Weaknesses: CWE-267

Metadata

Primary Vendor: ACCELLION
Published: 11/29/2025
Last Modified: 12/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-53900

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary