CVE-2025-52621

CVE-2025-52621 is a medium-severity vulnerability in Hcltech Bigfix Saas with a CVSS 3.x base score of 5.3. 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-346.

Key facts

Description

HCL BigFix SaaS Authentication Service is vulnerable to cache poisoning.  The BigFix SaaS's HTTP responses were observed to include the Origin header. Its presence alongside an unvalidated reflection of the Origin header value introduces a potential for cache poisoning.

Frequently asked questions

What is CVE-2025-52621?
HCL BigFix SaaS Authentication Service is vulnerable to cache poisoning.  The BigFix SaaS's HTTP responses were observed to include the Origin header. Its presence alongside an unvalidated reflection of the Origin header value introduces a potential for cache poisoning.
How severe is CVE-2025-52621?
CVE-2025-52621 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-52621 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52621?
CVE-2025-52621 affects Hcltech Bigfix Saas. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52621?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-52621 have an EU (EUVD) identifier?
Yes. CVE-2025-52621 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25055.
When was CVE-2025-52621 published?
CVE-2025-52621 was published on 2025-08-15 and last updated on 2026-06-17.

References

Affected products (1)

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