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Fencer Intel
high 7.5

CVE-2020-5939 json

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.3, 15.0.0-15.0.1.3, 14.1.0-14.1.2.6, and 13.1.0-13.1.3.4, BIG-IP Virtual Edition (VE) systems on…

published 6y ago modified 4mo ago also EUVD-2020-27093

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

In versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.3, 15.0.0-15.0.1.3, 14.1.0-14.1.2.6, and 13.1.0-13.1.3.4, BIG-IP Virtual Edition (VE) systems on VMware, with an Intel-based 85299 Network Interface Controller (NIC) card and Single Root I/O Virtualization (SR-IOV) enabled on vSphere, may fail and leave the Traffic Management Microkernel (TMM) in a state where it cannot transmit traffic.

Patch / fix

  • f5 big-ip_access_policy_manager 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_advanced_firewall_manager 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_advanced_web_application_firewall 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_analytics 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_application_acceleration_manager 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_application_security_manager 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_ddos_hybrid_defender 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_domain_name_system 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_fraud_protection_service 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_global_traffic_manager 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_link_controller 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_local_traffic_manager 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_policy_enforcement_manager 14.1.2.7, 15.1.0.4, 16.0.1
  • f5 big-ip_ssl_orchestrator 14.1.2.7, 15.1.0.4, 16.0.1

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Exploit prediction

1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

  • n/a BIG-IP Virtual Edition (VE)

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.