What’s Vulnerable › Vulnerabilities

CVE-2020-5893

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-30 · updated 2026-06-17
• Weakness: CWE-319

Description

In versions 7.1.5-7.1.8, when a user connects to a VPN using BIG-IP Edge Client over an unsecure network, BIG-IP Edge Client responds to authentication requests over HTTP while sending probes for captive portal detection.

Affected products

• F5 BIG-IP APM: from 11.6.1 through 11.6.5; from 12.1.0 through 12.1.5; from 13.1.0 through 13.1.3; from 14.0.0 through 14.1.2; from 15.0.0 through 15.1.0
• F5 Networks, Inc. BIG-IP APM client for Windows: from 7.1.5 before 7.1.9 — fixed in 7.1.9

How to fix

Upgrade to a fixed version: F5 Networks, Inc. BIG-IP APM client for Windows 7.1.9. Check the vendor advisory for mitigations.

References

• https://support.f5.com/csp/article/K97733133
• https://support.f5.com/csp/article/K97733133

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