CVE-2023-46747
F5 BIG-IP Configuration utility contains an authentication bypass using an alternate path or channel vulnerability due to undisclosed requests that…
Browse: All 2023 CVEs · All vendors
- CVSS score
- 9.8 Critical
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- CISA KEV
- Yes — actively exploited (added 2023-10-31, remediation due 2023-11-21)
- Ransomware
- Known ransomware campaign use
- Weakness (CWE)
- CWE-288, CWE-306
- Published
- 2023-10-26
- Last modified
- 2026-06-17
- NVD status
- Analyzed
Description
F5 BIG-IP Configuration utility contains an authentication bypass using an alternate path or channel vulnerability due to undisclosed requests that may allow an unauthenticated attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute system commands. This vulnerability can be used in conjunction with CVE-2023-46748.
Affected products
- f5 big-ip access policy manager
- f5 big-ip advanced firewall manager
- f5 big-ip advanced web application firewall
- f5 big-ip carrier-grade nat
- f5 big-ip ddos hybrid defender
- f5 big-ip ssl orchestrator
- f5 big-ip domain name system
- f5 big-ip local traffic manager
- f5 big-ip policy enforcement manager
- f5 big-ip automation toolchain
- f5 big-ip container ingress services
- f5 big-ip application security manager
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Federal remediation deadline: 2023-11-21.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.
References
- http://packetstormsecurity.com/files/175673/F5-BIG-IP-TMUI-AJP-Smuggling-Remote-Command-Execution.html
- https://my.f5.com/manage/s/article/K000137353
- https://www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-46747
FAQ
Is CVE-2023-46747 actively exploited?
Yes. CISA added CVE-2023-46747 to its Known Exploited Vulnerabilities (KEV) catalog on 2023-10-31, with a federal remediation deadline of 2023-11-21. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2023-46747?
CVE-2023-46747 has a CVSS base score of 9.8 (Critical). Its vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Related vulnerabilities
- CVE-2023-46748 — F5 BIG-IP Configuration Utility
- CVE-2025-53521 — F5 BIG-IP
- CVE-2022-1388 — F5 BIG-IP
- CVE-2021-22991 — F5 BIG-IP Traffic Management Microkernel
- CVE-2020-5902 — F5 BIG-IP
- CVE-2021-22986 — F5 BIG-IP and BIG-IQ Centralized Managemen
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
weekly kev brief
Patch what's actually being exploited.
One email a week: the KEV additions that matter, prioritized — no noise.
Free. No spam. Unsubscribe anytime. Delivered by Beehiiv.