CVE-2025-55249 HCL AION is affected by a Missing Security Response Headers vulnerability.

Low 3.5 Published Updated

HCL AION lacks standard security response headers, weakening its defense against common web-based attacks.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-55249?

CVE-2025-55249 is a low-severity vulnerability in HCL Software AION, published on 19 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

HCL AION is affected by a Missing Security Response Headers vulnerability. The absence of standard security headers may weaken the application’s overall security posture and increase its susceptibility to common web-based attacks.

Weakness: CWE-693

Which versions are affected by CVE-2025-55249?

It affects 1 product.

Products include Hcltech Aion.

How do I fix CVE-2025-55249?

No fix has been published for CVE-2025-55249 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-55249 being exploited?

There is no known exploitation of CVE-2025-55249 in the wild and no public exploit code.

Sources

Also known as GHSA-h2w2-28mj-m289.

Is CVE-2025-55249 in your software?

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