CVE-2023-46747

CRITICAL9.8

CISA KEV

Published 2023-10-26 · Updated 2026-06-17 · Source f5sirt@f5.com

Summary

CVE-2023-46747 is a critical-severity (CVSS 9.8) vulnerability in F5 BIG-IP Configuration Utility. CISA added it to the Known Exploited Vulnerabilities catalog on October 31, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by November 21, 2023. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. F5 has 8 vulnerabilities in the KEV catalog, 4 of them linked to ransomware.

All 8 known-exploited F5 vulnerabilities →

Description

Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-288CWE-306

CISA Known-Exploited Vulnerability

Product: F5 — BIG-IP Configuration Utility

Name: F5 BIG-IP Configuration Utility Authentication Bypass Vulnerability

Date added: 2023-10-31 · Due: 2023-11-21

USED IN RANSOMWARE

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

View on NVD

More exploited F5 vulnerabilities

Most recently added to CISA KEV

CVE-2026-94127
BIG-IP APM — F5 BIG-IP APM Heap-based Buffer Overflow Vulnerability
added 2026-09-22
CVE-2025-53521
BIG-IP — F5 BIG-IP Stack-Based Buffer Overflow Vulnerability
added 2026-03-27
CVE-2023-46748
BIG-IP Configuration Utility — F5 BIG-IP Configuration Utility SQL Injection Vulnerability
added 2023-10-31
CVE-2022-1388
RANSOMWARE
BIG-IP — F5 BIG-IP Missing Authentication Vulnerability
added 2022-05-10
CVE-2021-22991
BIG-IP Traffic Management Microkernel — F5 BIG-IP Traffic Management Microkernel Buffer Overflow
added 2022-01-18
CVE-2020-5902
RANSOMWARE
BIG-IP — F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution Vulnerability
added 2021-11-03

View all →

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