PatchSiren cyber security CVE debrief
CVE-2025-15633 Support CVE debrief
CVE-2025-15633 is an improper authorization issue in HCL BigFix WebUI. According to the CVE description and HCL reference, an authenticated user without Master Operator privileges may access internal data such as site names, versions, and configuration variables through unprotected endpoints, bypassing intended privilege checks. The CVSS score is 5.3 (Medium).
- Vendor
- Support
- Product
- Unknown
- CVSS
- MEDIUM 5.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-09
- Original CVE updated
- 2026-05-09
- Advisory published
- 2026-05-09
- Advisory updated
- 2026-05-09
Who should care
HCL BigFix WebUI administrators, security teams, and operators who manage authenticated access to WebUI endpoints and sensitive configuration data.
Technical summary
The supplied CVE record describes a privilege-check failure in HCL BigFix WebUI. A user who is already authenticated but does not hold Master Operator privileges may reach internal WebUI endpoints that should be restricted, resulting in exposure of internal metadata including site names, versions, and configuration variables. The NVD metadata also maps the issue to CWE-863 (Incorrect Authorization).
Defensive priority
Medium — this is an authenticated authorization bypass with internal data exposure, so it warrants prompt review and remediation, especially where WebUI access is broadly available.
Recommended defensive actions
- Follow HCL PSIRT guidance in KB0130587 for remediation and affected-version details.
- Restrict WebUI access to trusted administrative networks and identities until the vendor fix is applied.
- Review authentication and authorization rules for WebUI endpoints to ensure Master Operator checks are enforced consistently.
- Audit logs for unexpected access to site metadata, version data, or configuration-variable endpoints.
- Verify that security controls and response headers on exposed endpoints match HCL guidance and internal hardening standards.
Evidence notes
This debrief is based only on the supplied CVE/NVD metadata and the referenced HCL PSIRT knowledge base article. The CVE description states the issue affects HCL BigFix WebUI and involves an authenticated user without Master Operator privileges accessing internal data via unprotected endpoints. NVD lists the weakness as CWE-863 and the status as Received.
Official resources
-
CVE-2025-15633 CVE record
CVE.org
-
CVE-2025-15633 NVD detail
NVD
-
Source item URL
nvd_modified
- Source reference
Publicly disclosed in the supplied CVE/NVD record on 2026-05-09, with an HCL PSIRT reference to KB0130587.