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TI-2017-04039 Aliases CVE-2017-6166GHSA-j35v-h5m8-p59m

Double free in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM…

Priority LOW 30CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-415 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.01928 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
F5BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe12.0.0, 12.1.1—No fix listedCNA
  • BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe VendorF5 Affected 12.0.0, 12.1.1 Fixed in — No fix listed CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_afm:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_apm:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_asm:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_dns:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_ltm:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:big-ip_pem:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
cpe:2.3:a:f5:f5_websafe:*:*:*:*:*:*:*:*12.0.0 – 12.1.1VulnerableF5
  • cpe:2.3:a:f5:big-ip_afm:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_apm:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_asm:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_dns:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_ltm:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_pem:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
  • cpe:2.3:a:f5:f5_websafe:*:*:*:*:*:*:*:* Versions 12.0.0 – 12.1.1 Vulnerable ·F5
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:f5:linerate:*:*:*:*:*:*:*:*2.5.0 – 2.6.2VulnerableF5
  • cpe:2.3:a:f5:linerate:*:*:*:*:*:*:*:* Versions 2.5.0 – 2.6.2 Vulnerable ·F5

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-6166
  2. 2026-10-03 Alias added: GHSA-j35v-h5m8-p59m

References

Advisory 1

  • TI-2017-04041 On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in… CVSS 3.0HIGH 7.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences