What’s Vulnerable › Vulnerabilities

CVE-2020-5870

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-04-24 · updated 2026-06-17
• Weakness: CWE-306

Description

In BIG-IQ 5.2.0-7.0.0, high availability (HA) synchronization mechanisms do not use any form of authentication for connecting to the peer.

Affected products

• F5 BIG-IQ: from 5.2.0 through 5.4.0; from 6.0.0 through 6.1.0; from 7.0.0 before 7.1.0 — fixed in 7.1.0

How to fix

Upgrade to a fixed version: F5 BIG-IQ 7.1.0. Check the vendor advisory for mitigations.

References

• https://support.f5.com/csp/article/K69422435
• https://support.f5.com/csp/article/K69422435

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