How severe is CVE-2025-52659?

CVE-2025-52659 has a CVSS 3.x base score of 2.8, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-52659 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52659?

CVE-2025-52659 affects Hcltech Aion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52659?

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

Does CVE-2025-52659 have an EU (EUVD) identifier?

Yes. CVE-2025-52659 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3209.

When was CVE-2025-52659 published?

CVE-2025-52659 was published on 2026-01-19 and last updated on 2026-06-17.

CVE-2025-52659

CVE-2025-52659 is a low-severity vulnerability in Hcltech Aion with a CVSS 3.x base score of 2.8. 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-525.

Key facts

Severity: Low (CVSS 3.x base score 2.8)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3209
Weakness: CWE-525
Affected product: Hcltech Aion
Published: 2026-01-19
Last modified: 2026-06-17

Description

HCL AION version 2 is affected by a Cacheable HTTP Response vulnerability. This may lead to unintended storage of sensitive or dynamic content, potentially resulting in unauthorized access or information disclosure.

Frequently asked questions

What is CVE-2025-52659?: HCL AION version 2 is affected by a Cacheable HTTP Response vulnerability. This may lead to unintended storage of sensitive or dynamic content, potentially resulting in unauthorized access or information disclosure.
How severe is CVE-2025-52659?: CVE-2025-52659 has a CVSS 3.x base score of 2.8, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-52659 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52659?: CVE-2025-52659 affects Hcltech Aion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52659?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-52659 have an EU (EUVD) identifier?: Yes. CVE-2025-52659 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3209.
When was CVE-2025-52659 published?: CVE-2025-52659 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:*:*:*:*:*:*:*

More vulnerabilities in Hcltech Aion

CVE-2025-52650 — High (CVSS 8.2): Inline script execution allowed in CSP vulnerability has been identified in HCL AION v2.0
CVE-2025-52632 — Medium (CVSS 6.5): A Missing Secure Attribute in Encrypted Session (SSL) Cookie vulnerability in HCL AION.This issue affects AION: 2.0.
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