What is CVE-2025-55251?

CVE-2025-55251 is a low-severity vulnerability in Hcl Software Aion, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 3.1/10. Published 2026-01-19.

How severe is CVE-2025-55251?

Low severity. CVSS v3 base score is 3.1 out of 10.

Arbitrary file upload in Hcl Software Aion

CVE-2025-55251

HCL AION is affected by an Unrestricted File Upload vulnerability. This can allow malicious file uploads, potentially resulting in unauthorized code execution or system compromise.

Vulnerability class: Unrestricted File Upload

Published 2026-01-19 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.002 (10.2th percentile), scored 2026-09-27.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Hcl Software Aion — versions 2
Hcltech Aion — versions 2.0.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

support.hcl-software.com/kb_view.do (Permissions Required)

Frequently asked questions

What is CVE-2025-55251?: CVE-2025-55251 is a low-severity vulnerability in Hcl Software Aion, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 3.1/10. Published 2026-01-19.
How severe is CVE-2025-55251?: Low severity. CVSS v3 base score is 3.1 out of 10.