CVE-2017-6168: F5 BIG-IP Afm

High severity, CVSS 7.4. EPSS: 19.6% chance of exploitation in the next 30 days.

On BIG-IP versions 11.6.0-11.6.2 (fixed in 11.6.2 HF1), 12.0.0-12.1.2 HF1 (fixed in 12.1.2 HF2), or 13.0.0-13.0.0 HF2 (fixed in 13.0.0 HF3) a virtual server configured with a Client SSL profile may be vulnerable to an Adaptive Chosen Ciphertext attack (AKA Bleichenbacher attack) against RSA, which when exploited, may result in plaintext recovery of encrypted messages and/or a Man-in-the-middle (MiTM) attack, despite the attacker not having gained access to the server's private key itself, aka a ROBOT attack.

Affected products

• F5 BIG-IP Afm: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 BIG-IP Analytics: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 BIG-IP APM: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 BIG-IP Application Acceleration Manager: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 BIG-IP Asm: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 BIG-IP Link Controller: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 BIG-IP Ltm: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 BIG-IP Pem: from 11.6.0, up to and including 11.6.2; from 12.0.0, up to and including 12.1.2; version 13.0.0 only
• F5 Websafe: from 12.0.0, up to and including 12.1.2; version 11.6.2 only; version 13.0.0 only

Published 2017-11-17. Last modified 2026-06-17.