dbcve.org
Bigfix Service ManagementApplication · Hcltech

CVE-2025-31974

HIGH · 7.2 CVSS v3.1 Published 2026-05-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

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 · unedited
HCL BigFix Service Management (SM) is susceptible to a Root File System Not Mounted as Read-Only. An improperly configured root file system may allow unintended modifications to critical system components, potentially increasing the risk of system compromise or unauthorized changes.

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 · high confidence

HCL BigFix Service Management has an improperly configured root file system that is not mounted as read-only, allowing unintended modifications to critical system files and increasing the risk of system compromise or unauthorized changes.

MitigationConfigure the root filesystem as read-only in /etc/fstab or systemd mounts, ensuring separate writable partitions for /var, /tmp, and other directories that require write access for system operation.

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
Bigfix Service ManagementApplication
Affected:= 23.0

CVSS 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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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 checks

Work through these to decide whether this CVE applies to you.

  1. Check installed HCL BigFix version
    Run: /opt/BigFix/BESServer/__BESData/__CustomSite_Product_0/Reports/BigFix_RPM_Version.sh or check /opt/BigFix/BESServer/version.txt
    Affected if Version is exactly 23.0
  2. Verify root filesystem current mount status
    Run: mount | grep 'on / ' and check if the options column contains 'ro' (read-only) vs 'rw' (read-write)
    Affected if Mount shows 'rw' option - root filesystem is mounted read-write
  3. Inspect /etc/fstab root entry
    Run: grep '[[:space:]]/[[:space:]]' /etc/fstab and examine the fourth field (mount options)
    Affected if Mount options do not contain 'ro' flag for root (/) filesystem entry

User is affected if running HCL BigFix Service Management version 23.0 AND the root filesystem (/) is mounted read-write rather than read-only, as shown by current mount status or /etc/fstab configuration.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Configure the root filesystem as read-only in /etc/fstab or systemd mounts, ensuring separate writable partitions for /var, /tmp, and other directories that require write access for system operation.

Fix this in Bigfix Service Management Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-31974 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data