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CVE-2025-53899

25
FAUCET Score

CVE-2025-53899 is a high-severity vulnerability (CVSS 7.2) affecting Kiteworks Managed File Transfer (MFT) versions prior to 9.1.0. This flaw, categorized as an incorrectly specified destination in a communication channel (CWE-941), allows an attacker with administrative privileges to intercept upstream communications, potentially leading to an escalation of privileges. While the vulnerability has a high FAUCET Risk Score of 84/100, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage. Organizations using affected Kiteworks MFT versions should upgrade to 9.1.0 or later to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.1.0CPE matchmatch criteria
cpe:2.3:a:accellion:kiteworks_managed_file_transfer:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 36th percentile among its peer group of 5,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / kiteworks/security-advisories/security/advisories/GHSA-5gx5-vcpp-8cr5
PatchThird Party Advisory