major vulnerability· requires attention

Affects a widely deployed enterprise product (HCL BigFix) and enables cross-tenant PII exfiltration and DB command injection — broad, high-impact risk to organizations.

Applications

CVE-2026-67100

9.8

Critical

EPSS 0.47%Patch available

Authenticated SQL injection and cross-tenant data exposure in HCL BigFix Service Management

exploited

No known exploitation not in CISA KEV as of our last sync

fix

Patch available see the advisory in the references

likelihood

EPSS 0.47%top 60% of scored CVEs

Published 18 Sept 2026Analysed here 19 Sept 2026CVSS scored by the publisher (CNA)

common questions

Is CVE-2026-67100 being exploited?

Not confirmed. CVE-2026-67100 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.47% probability of exploitation in the next 30 days.

How severe is CVE-2026-67100?

CVE-2026-67100 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-67100?

Yes. A fix has been recorded for CVE-2026-67100. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-67100 affect?

CVE-2026-67100 affects HCL BigFix Service Management. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-67100?

Apply vendor fix ASAP; isolate instances, rotate credentials, and audit/log access

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

HCL BigFix Service Management

impact

Authenticated SQL injection + cross-tenant request manipulation lets attackers exfiltrate DB data and access full personal profiles/PII across tenants.

action required

Immediate action required

affected versions

HCL Software HCL BigFix Service Management

affectedV23

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

cisa ssvc

exploitation: none
automatable: yes
technical impact: total

Assessed by CISA 18 Sept 2026 (SSVC 2.0.3).

timeline

18 Sept 2026Published
18 Sept 2026CISA SSVC assessment: exploitation none · same day later
18 Sept 2026CVE record last updated · same day later
19 Sept 2026Analysed by vulneraibility.com · 1 day later

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

1 reference in the CVE record: 1 link

Linksupport.hcl-software.com /csm?id=kb_article&sysparm_article=KB0133782

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
CISA Vulnrichment (ADP): SSVC decision points
FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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