CISA KEV · Known exploitedCritical

CVE-2022-1388

F5 BIG-IP

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

CVSS: 9.8
EPSS: 100.0%
CISA KEV: Listed
Published: 2022.05.06

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability100.0%

Technical severityCVSS 9.8

Vulnerability overview

Affected product and versions

Product: F5 BIG-IP
Affected versions: 16.1.x, 15.1.x, 14.1.x, 13.1.x, 12.1.x, 11.6.x, >= 11.6.1 <= 11.6.5, >= 12.1.0 <= 12.1.6, >= 13.1.0 < 13.1.5, >= 14.1.0 < 14.1.4.6, >= 15.1.0 < 15.1.5.1, >= 16.1.0 < 16.1.2.2
Fixed versions: 13.1.5, 14.1.4.6, 15.1.5.1, 16.1.2.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.31

1
Identify
Confirm that F5 BIG-IP and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-306
KEV added: 2022.05.10
Ransomware use: 확인됨