What’s Vulnerable › Vulnerabilities

CVE-2017-6166

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-11-22 · updated 2026-06-17
• Weakness: CWE-415

Description

In BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe software 12.0.0 to 12.1.1, in some cases the Traffic Management Microkernel (TMM) may crash when processing fragmented packets. This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. If the affected BIG-IP system is configured as part of a device group, it will trigger a failover to the peer device.

Affected products

• F5 Big-Ip Afm: from 12.0.0 through 12.1.1
• F5 Big-Ip Analytics: from 12.0.0 through 12.1.1
• F5 Big-Ip Apm: from 12.0.0 through 12.1.1
• F5 Networks, Inc. BIG-IP (AAM): from 12.0.0 through 12.1.1
• F5 Big-Ip Asm: from 12.0.0 through 12.1.1
• F5 Networks, Inc. BIG-IP (DNS): from 12.0.0 through 12.1.1
• F5 Big-Ip Link Controller: from 12.0.0 through 12.1.1
• F5 BIG-IP LTM: from 12.0.0 through 12.1.1
• F5 Big-Ip Pem: from 12.0.0 through 12.1.1
• F5 Websafe: from 12.0.0 through 12.1.1
• F5 Linerate: from 2.5.0 through 2.6.2

References

• http://www.securityfocus.com/bid/102264
• http://www.securitytracker.com/id/1039949
• https://support.f5.com/csp/article/K65615624
• http://www.securityfocus.com/bid/102264
• http://www.securitytracker.com/id/1039949
• https://support.f5.com/csp/article/K65615624

Get alerted when CVE-2017-6166 or the next vulnerability affects your stack