CISA KEV · Known exploitedCritical

CVE-2021-22986

F5 BIG-IP and BIG-IQ Centralized Management

On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3 amd BIG-IQ 7.1.0.x before 7.1.0.3 and 7.0.0.x before 7.0.0.2, the iControl REST interface has an unauthenticated remote command execution vulnerability. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

CVSS: 9.8
EPSS: 99.9%
CISA KEV: Listed
Published: 2021.04.01

PRIORITY ASSESSMENT

Immediate review

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

Known exploitationConfirmed by CISA KEV

Exploit probability99.9%

Technical severityCVSS 9.8

Vulnerability overview

Affected product and versions

Product: F5 BIG-IP and BIG-IQ Centralized Management
Affected versions: BIG-IP 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, BIG-IQ 7.1.0.x before 7.1.0.3, 7.0.0.x before 7.0.0.2, >= 12.1.0 < 12.1.5.3, >= 13.1.0 < 13.1.3.6, >= 14.1.0 < 14.1.4, >= 15.1.0 < 15.1.2.1, >= 16.0.0 < 16.0.1.1, >= 6.0.0 < 6.1.0, >= 7.0.0 < 7.0.0.2, >= 7.1.0 < 7.1.0.3
Fixed versions: 12.1.5.3, 13.1.3.6, 14.1.4, 15.1.2.1, 16.0.1.1, 6.1.0, 7.0.0.2, 7.1.0.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2021.11.17

1
Identify
Confirm that F5 BIG-IP and BIG-IQ Centralized Management 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-863, CWE-918
KEV added: 2021.11.03
Ransomware use: 확인됨