What is CVE-2025-52661?

CVE-2025-52661 is a low-severity vulnerability in Hcl Software Aion, classified under Insufficient Session Expiration. CVSS score: 2.4/10. Published 2026-01-19.

How severe is CVE-2025-52661?

Low severity. CVSS v3 base score is 2.4 out of 10.

Vulnerability in Hcl Software Aion

CVE-2025-52661

HCL AION version 2 is affected by a JWT Token Expiry Too Long vulnerability. This may increase the risk of token misuse, potentially resulting in unauthorized access if the token is compromised.

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

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.7th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.7% 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-613 — Insufficient Session Expiration

References

support.hcl-software.com/kb_view.do (Vendor Advisory)

Frequently asked questions

What is CVE-2025-52661?: CVE-2025-52661 is a low-severity vulnerability in Hcl Software Aion, classified under Insufficient Session Expiration. CVSS score: 2.4/10. Published 2026-01-19.
How severe is CVE-2025-52661?: Low severity. CVSS v3 base score is 2.4 out of 10.