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No exploitation reportedFix available

CVE-2020-5939

No exploitation reported by the sources we read.

  • Published2020-11-05
  • Fixed in16.0.1 · 15.1.0.4 · 14.1.2.7

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2020-11-0520:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-5939?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-5939?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
F5 big-ip access policy manager
BranchAffectedFixed in
16.0≥ 16.0.0, < 16.0.116.0.1
15.1≥ 15.1.0, < 15.1.0.415.1.0.4
14.1≥ 14.1.0, < 14.1.2.714.1.2.7
13.1≥ 13.1.0, ≤ 13.1.3no fix published
F5 big-ip advanced firewall manager
BranchAffectedFixed in
16.0≥ 16.0.0, < 16.0.116.0.1
15.1≥ 15.1.0, < 15.1.0.415.1.0.4
14.1≥ 14.1.0, < 14.1.2.714.1.2.7
13.1≥ 13.1.0, ≤ 13.1.3no fix published
F5 big-ip advanced web application firewall
BranchAffectedFixed in
16.0≥ 16.0.0, < 16.0.116.0.1
15.1> 15.1.0, < 15.1.0.415.1.0.4
14.1≥ 14.1.0, < 14.1.2.714.1.2.7
13.1≥ 13.1.0, ≤ 13.1.3no fix published

11 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update F5 big-ip access policy manager to 16.0.1 · 15.1.0.4 · 14.1.2.7

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • FIRST EPSSEPSS score1.0 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2020-11-05
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-5939?

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.

Is CVE-2020-5939 actively exploited?

Active exploitation of CVE-2020-5939 has not been confirmed. Its EPSS score was 1.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-5939?

CVE-2020-5939 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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