MEDIUM SEVERITY

CVE-2018-5515

Big Ip Local Traffic Manager vulnerability

CVSS
4.4
EPSS
3.2%
EPSS pct
87th
Exploited
No known
On F5 BIG-IP 13.0.0-13.1.0.5, using RADIUS authentication responses from a RADIUS server with IPv6 addresses may cause TMM to crash, leading to a failover event.
Affected vendor
F5
Affected product
Big Ip Local Traffic Manager
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2018-05-02

Risk analysis

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

Its EPSS score of 3.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2018-5515

  • Confirm whether F5 Big Ip Local Traffic Manager is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-5515.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-5515

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