CVE-2026-28270

Name: CVE-2026-28270
Creator: NVD / NIST
Published: 2026-02-27T21:16:18.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 1.61%

Last modified Jun 17, 2026

CVE-2026-28270 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration allows uploading of arbitrary files without proper validation. EPSS estimates a 1.61% chance of exploitation in the next 30 days.

Description

Kiteworks is a private data network (PDN). Prior to version 9.2.0, a vulnerability in Kiteworks configuration allows uploading of arbitrary files without proper validation. Malicious administrators could exploit this to upload unauthorized file types to the system. Version 9.2.0 contains a patch for the issue.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

1.61%

72.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Accellion	Kiteworks	< 9.2.0

References

https://github.com/kiteworks/security-advisories/security/advisories/GHSA-v8x9-vwg6-cj45Vendor Advisory

Timeline

Published: Feb 27, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-28270?

How severe is CVE-2026-28270?

CVE-2026-28270 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 1.61% probability of exploitation in the next 30 days.

How do I fix CVE-2026-28270?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-28270?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST