How severe is CVE-2025-55249?

CVE-2025-55249 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-55249 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55249?

CVE-2025-55249 affects Hcltech Aion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55249?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-55249 have an EU (EUVD) identifier?

Yes. CVE-2025-55249 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3208.

When was CVE-2025-55249 published?

CVE-2025-55249 was published on 2026-01-19 and last updated on 2026-06-17.

CVE-2025-55249

CVE-2025-55249 is a low-severity vulnerability in Hcltech Aion with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-693.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3208
Weakness: CWE-693
Affected product: Hcltech Aion
Published: 2026-01-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-55249?: 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.
How severe is CVE-2025-55249?: CVE-2025-55249 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-55249 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55249?: CVE-2025-55249 affects Hcltech Aion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55249?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-55249 have an EU (EUVD) identifier?: Yes. CVE-2025-55249 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3208.
When was CVE-2025-55249 published?: CVE-2025-55249 was published on 2026-01-19 and last updated on 2026-06-17.

References

https://support.hcl-software.com/kb_view.do?sys_kb_id=4b92474633de7ad4159a05273e5c7b4b&searchTerm=kb0127995#

Affected products (1)

cpe:2.3:a:hcltech:aion:2.0.0:*:*:*:*:*:*:*

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