What’s Vulnerable › Vulnerabilities

CVE-2018-5540

• Severity: medium (CVSS 4.4 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-19 · updated 2026-06-17
• Weakness: CWE-732

Description

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.

Affected products

• F5 BIG-IP DNS: from 11.5.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.3; from 13.0.0 through 13.0.1
• F5 Big-Ip Global Traffic Manager: from 11.5.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.3; from 13.0.0 through 13.0.1
• F5 BIG-IQ: from 5.0.0 through 5.1.0
• F5 Networks, Inc. BIG-IQ Cloud and Orchestration: 1.0.0
• F5 Networks, Inc. Enterprise Manager: 3.1.1
• F5 Networks, Inc. F5 iWorkflow: from 2.1.0 through 2.3.0

References

• http://www.securityfocus.com/bid/104920
• http://www.securitytracker.com/id/1041340
• http://www.securitytracker.com/id/1041341
• https://support.f5.com/csp/article/K82038789
• http://www.securityfocus.com/bid/104920
• http://www.securitytracker.com/id/1041340
• http://www.securitytracker.com/id/1041341
• https://support.f5.com/csp/article/K82038789

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