THREATPORT/VULNERABILITY/CVE-2016-5023
HIGH SEVERITY

CVE-2016-5023

Big Ip Edge Gateway vulnerability

CVSS
7.5
EPSS
3.0%
EPSS pct
86th
Exploited
No known
Virtual servers in F5 BIG-IP systems 11.2.1 HF11 through HF15, 11.4.1 HF4 through HF10, 11.5.3 through 11.5.4, 11.6.0 HF5 through HF7, and 12.0.0, when configured with a TCP profile, allow remote attackers to cause a denial of service (Traffic Management Microkernel restart) via crafted network traffic.
Affected vendor
F5
Affected product
Big Ip Edge Gateway
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-284 — Improper Access Control
Published
2016-08-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2016-5023

  • Confirm whether F5 Big Ip Edge Gateway is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-5023.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-5023

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-5023 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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