CVE-2025-53899 Kiteworks MFT is vulnerable to an Incorrectly Specified Destination in a Communication Channel
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2025-53899?
CVE-2025-53899 is a high-severity vulnerability in kiteworks security-advisories, published on 29 Nov 2025.
Official description
Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, the back-end of Kiteworks MFT is vulnerable to an incorrectly specified destination in a communication channel which allows an attacker with administrative privileges on the system under certain circumstances to intercept upstream communication which could lead to an escalation of privileges. This issue has been patched in version 9.1.0.
Weakness: CWE-941
Which versions are affected by CVE-2025-53899?
It affects 1 product.
Products include Accellion Kiteworks Managed File Transfer.
How do I fix CVE-2025-53899?
No fix has been published for CVE-2025-53899 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-53899 being exploited?
There is no known exploitation of CVE-2025-53899 in the wild and no public exploit code.