CISA KEV · Known exploitedCritical

CVE-2020-5902

F5 BIG-IP

In BIG-IP versions 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, the Traffic Management User Interface (TMUI), also referred to as the Configuration utility, has a Remote Code Execution (RCE) vulnerability in undisclosed pages.

CVSS: 9.8
EPSS: 100.0%
CISA KEV: Listed
Published: 2020.07.02

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: 15.0.0-15.1.0.3, 14.1.0-14.1.2.5, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, 11.6.1-11.6.5.1, >= 11.6.1 < 11.6.5.2, >= 12.1.0 < 12.1.5.2, >= 13.1.0 < 13.1.3.4, >= 14.1.0 < 14.1.2.6, >= 15.0.0 <= 15.0.1.4, >= 15.1.0 < 15.1.0.4, >= 15.0.0 < 15.0.1.4
Fixed versions: 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, 15.1.0.4, 15.0.1.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.03

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-22
KEV added: 2021.11.03
Ransomware use: 확인됨