High severity · published Nov 29, 2025
CVE-2025-53900
Kiteworks MFT has a Privilege Defined With Unsafe Actions
8.8
CVSS
1.1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · kiteworks
< 9.1.0 · source: vendor
KM
Kiteworks Managed File Transfer · Accellion
before 9.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-53900
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-53900
Patch
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-gjq3-8v6p-2h6h
More from security-advisories
8.8
CVE-2026-28269
Kiteworks Core has an OS Command Injection
8.8
CVE-2025-53939
Kiteworks Core is vulnerable to Improper Input Validation
8.1
CVE-2025-53896
Kiteworks MFT is vulnerable to Insufficient Session Expiration
7.2
CVE-2026-28270
Kiteworks Core has an Unrestricted Upload of File with Dangerous Type
7.2
CVE-2025-53899
Kiteworks MFT is vulnerable to an Incorrectly Specified Destination in a Communication Channel