What is the CVSS score of CVE-2025-52621?

CVE-2025-52621 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Bigfix Saas are affected by CVE-2025-52621?

Organizations using HCL BigFix SaaS Authentication Service should be aware of moderate risk from CVE-2025-52621 rated CVSS 5.3. Exploitation could compromise the security of affected deployments.

How to fix or mitigate CVE-2025-52621?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Bigfix Saas CVE-2025-52621

MEDIUM

Origin Validation Error (CWE-346)

2025-08-15 psirt@hcl.com

Information Disclosure Bigfix Saas

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:07 vuln.today

CVE Published

Aug 15, 2025 - 23:15 nvd

MEDIUM 5.3

DescriptionCVE.org

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.

AnalysisAI

HCL BigFix SaaS Authentication Service is vulnerable to cache poisoning. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-346. 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. Affected products include: Hcltech Bigfix Saas.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.