Vulnerability Intelligence

CVE-2022-1388

Critical 9.8 Exploited in the wild (KEV) Used in ransomware campaigns

Published
Last modified
NVD status
Analyzed

CISA KEV catalog

Confirmed active exploitation.

Listed in CISA's catalog of Known Exploited Vulnerabilities: attackers are using it in real attacks. Patch it with priority.

CISA KEV
Name
F5 BIG-IP Missing Authentication Vulnerability
Added to catalog
Remediation due date (US federal)
Required action
Apply updates per vendor instructions.

Description

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all 12.1.x and 11.6.x versions, undisclosed requests may bypass iControl REST authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Affected products

f5: big-ip access policy manager; f5: big-ip advanced firewall manager; f5: big-ip analytics; f5: big-ip application acceleration manager; f5: big-ip application security manager; f5: big-ip domain name system; f5: big-ip fraud protection service; f5: big-ip global traffic manager; f5: big-ip link controller; f5: big-ip local traffic manager; f5: big-ip policy enforcement manager

References10

Metrics

CVSS 3.1
9.8 CRITICAL Score source: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — exploit probability
100% percentile: 100 · as of 2 November 2026
CWE
CWE-306