How severe is CVE-2025-55266?

CVE-2025-55266 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability low.

Is CVE-2025-55266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55266?

CVE-2025-55266 affects Hcltech Aftermarket Cloud. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55266?

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

Does CVE-2025-55266 have an EU (EUVD) identifier?

Yes. CVE-2025-55266 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209055.

When was CVE-2025-55266 published?

CVE-2025-55266 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2025-55266

CVE-2025-55266 is a medium-severity vulnerability in Hcltech Aftermarket Cloud with a CVSS 3.x base score of 5.9. 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-384.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209055
Weakness: CWE-384
Affected product: Hcltech Aftermarket Cloud
Published: 2026-03-26
Last modified: 2026-06-17

Description

HCL Aftermarket DPC is affected by Session Fixation which allows attacker to takeover the user's session and use it carry out unauthorized transaction behalf of the user.

Frequently asked questions

What is CVE-2025-55266?: HCL Aftermarket DPC is affected by Session Fixation which allows attacker to takeover the user's session and use it carry out unauthorized transaction behalf of the user.
How severe is CVE-2025-55266?: CVE-2025-55266 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability low.
Is CVE-2025-55266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55266?: CVE-2025-55266 affects Hcltech Aftermarket Cloud. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55266?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-55266 have an EU (EUVD) identifier?: Yes. CVE-2025-55266 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209055.
When was CVE-2025-55266 published?: CVE-2025-55266 was published on 2026-03-26 and last updated on 2026-06-17.

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129793

Affected products (1)

cpe:2.3:a:hcltech:aftermarket_cloud:1.0.0:*:*:*:*:*:*:*

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