CVE-2025-0277
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedHCL BigFix Mobile 3.3 and earlier are vulnerable to certain insecure directives within the Content Security Policy (CSP). An attacker could trick users into performing actions by not properly restricting the sources of scripts and other content.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceHCL BigFix Mobile 3.3 and earlier versions contain a Content Security Policy (CSP) misconfiguration where insecure directives fail to properly restrict the sources of scripts and other content. This allows attackers to potentially inject malicious scripts or content from untrusted origins, leading to XSS or content injection attacks.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 3.3< 3.4CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the installed BigFix product and versionUse your system's package manager, software inventory, or the BigFix admin console to determine whether HCL BigFix Mobile or BigFix Modern Client Management is installed, and note its exact version number.Affected if The installed version is BigFix Mobile at 3.3 or earlier, or BigFix Modern Client Management at any version below 3.4.
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Locate CSP configuration or response headersIf you have access to the BigFix server or web interface logs, capture HTTP responses from the BigFix application using a browser dev tool or a proxy like Burp or curl, focusing on the Content-Security-Policy HTTP header.Affected if The application returns a Content-Security-Policy header that contains the CSP misconfiguration.
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Inspect for unsafe-inline or unsafe-eval directivesExamine the CSP header value for the presence of 'unsafe-inline' or 'unsafe-eval' directives, which allow inline scripts or dynamic code execution from untrusted sources.Affected if The CSP header contains 'unsafe-inline' or 'unsafe-eval', which weakens script restrictions.
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Check for overly permissive source AllowlistsReview the CSP header for wildcard sources (such as '*', '*.example.com', or overly broad domain patterns) in script-src, style-src, img-src, or other content directives.Affected if The CSP allows content from wildcard or untrusted domains, enabling injection from arbitrary origins.
You are affected if BigFix Mobile is at version 3.3 or earlier (or Modern Client Management is below 3.4) AND the CSP header contains insecure directives like unsafe-inline, unsafe-eval, or overly permissive source Allowlists.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped3.4
Update HCL BigFix Mobile to version 3.4 or later to receive the patched CSP configuration, or manually review and harden CSP headers to remove unsafe directives like 'unsafe-inline', 'unsafe-eval', or overly permissive wildcard sources.
BigFix Mobile: 3.4 or later | BigFix Modern Client Management: 3.4 or later
- 1. Identify the current BigFix Mobile and/or BigFix Modern Client Management version in your environment
- 2. Access HCL support portal at support.hcl-software.com to obtain the version 3.4 or later installation packages
- 3. Review HCL BigFix upgrade documentation for your specific product
- 4. Schedule a maintenance window for the upgrade
- 5. Backup current configuration and database as recommended in HCL documentation
- 6. Install BigFix Mobile version 3.4 or later, or BigFix Modern Client Management version 3.4 or later
- 7. Verify the upgrade was successful by checking the product version
- 8. Validate that CSP headers are now properly configured by reviewing server responses
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-0277 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-0277 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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