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CVE Record

CVE-2018-5540: On F5 BIG-IP 13.0.0-13.0.1, 12.1.0-12.1.3.3, 11.6.0-11.6.3.1, or 11.5.1-11.5.6, Enterprise Manager 3.1.1, B...

On F5 BIG-IP 13.0.0-13.0.1, 12.1.0-12.1.3.3, 11.6.0-11.6.3.1, or 11.5.1-11.5.6, Enterprise Manager 3.1.1, BIG-IQ Centralized Management 5.0.0-5.1.0, BIG-IQ Cloud and Orchestration 1.0.0, or F5 iWorkflow 2.1.0-2.3.0 the big3d process does not irrevocably minimize group privileges at start up.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2018-5540 is a privilege-handling weakness in several older F5 BIG-IP and management products. The big3d process does not permanently reduce group privileges at startup. The public bundle does not provide a CVSS score, impact detail, or confirmed exploit activity, so urgency depends on whether affected F5 versions remain deployed. Exposure is limited to organizations still running the listed F5 product families and versions. BIG-IP DNS/GTM appliances are often business-critical network infrastructure, so unresolved exposure should be verified through asset inventory and version checks. Make this a targeted legacy F5 hygiene item. It is not supported here as actively exploited, but affected versions are old infrastructure software and should not remain untracked in production. Mitigation focus: Check F5 advisory K82038789 for official remediation guidance.; Inventory F5 BIG-IP, BIG-IQ, Enterprise Manager, and iWorkflow versions.; Prioritize replacing or upgrading affected, unsupported legacy versions..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2018-5540 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
F5 Networks, Inc.BIG-IP (DNS, GTM)13.0.0-13.0.1, 12.1.0-12.1.3.3, 11.6.0-11.6.3.1, 11.5.1-11.5.6Listed
F5 Networks, Inc.Enterprise Manager3.1.1Listed
F5 Networks, Inc.BIG-IQ Centralized Management5.0.0-5.1.0Listed
F5 Networks, Inc.BIG-IQ Cloud and Orchestration1.0.0Listed
F5 Networks, Inc.F5 iWorkflow2.1.0-2.3.0Listed
Weakness

CWE details

No CWE listed

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