What is CVE-2025-53896?

CVE-2025-53896 is a high-severity vulnerability in Accellion Kiteworks_managed_file_transfer, classified under Insufficient Session Expiration. CVSS score: 7.1/10. Published 2025-11-29.

How severe is CVE-2025-53896?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Accellion Kiteworks_managed_file_transfer

CVE-2025-53896

Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, a bug in Kiteworks MFT could cause under certain circumstances that a user's active session would not properly time out due to inactivity. This issue ha…

EPSS: 0.002 (7.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Accellion Kiteworks_managed_file_transfer
Kiteworks Security-advisories — versions < 9.1.0

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2025-53896?: CVE-2025-53896 is a high-severity vulnerability in Accellion Kiteworks_managed_file_transfer, classified under Insufficient Session Expiration. CVSS score: 7.1/10. Published 2025-11-29.
How severe is CVE-2025-53896?: High severity. CVSS v3 base score is 7.1 out of 10.