Vendor scorecard
CISA lists 8 F5 vulnerabilities as exploited in the wild, 2 of them added in the last 12 months (up from 0 in the 12 months before). 4 (50%) are known to be used in ransomware campaigns. For entries added in the last two years, the median time from CVE publication to the KEV listing was 81 days. Most affected: BIG-IP (3), BIG-IP Configuration Utility (2), BIG-IP APM (1).
| Product | KEV entries |
|---|---|
| BIG-IP | 3 |
| BIG-IP Configuration Utility | 2 |
| BIG-IP APM | 1 |
| BIG-IP Traffic Management Microkernel | 1 |
| BIG-IP and BIG-IQ Centralized Management | 1 |
| CVE | Vulnerability | Added |
|---|---|---|
| CVE-2026-94127 | F5 BIG-IP APM Heap-based Buffer Overflow VulnerabilityBIG-IP APM | |
| CVE-2025-53521 | F5 BIG-IP Stack-Based Buffer Overflow VulnerabilityBIG-IP | |
| CVE-2023-46748 | F5 BIG-IP Configuration Utility SQL Injection VulnerabilityBIG-IP Configuration Utility | |
| CVE-2023-46747 | F5 BIG-IP Configuration Utility Authentication Bypass VulnerabilityRANSOMWAREBIG-IP Configuration Utility | |
| CVE-2022-1388 | F5 BIG-IP Missing Authentication VulnerabilityRANSOMWAREBIG-IP | |
| CVE-2021-22991 | F5 BIG-IP Traffic Management Microkernel Buffer OverflowBIG-IP Traffic Management Microkernel | |
| CVE-2021-22986 | F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution VulnerabilityRANSOMWAREBIG-IP and BIG-IQ Centralized Management | |
| CVE-2020-5902 | F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution VulnerabilityRANSOMWAREBIG-IP |
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How to read this: CISA KEV lists vulnerabilities with reliable evidence of exploitation; a vendor with many entries is often one with a large, internet-facing install base, not necessarily worse engineering. "Publication → KEV" is the median number of days between the CVE's publication and its addition to KEV, for entries added in the last 24 months (2 entries); it is an upper bound on how long defenders had, since exploitation usually starts before the listing. Under NIS2 article 21(2)(d), supplier security is part of your risk management; this page is a starting point for that review. Compare vendors on the scorecard index.
We assess supplier security for NIS2 and DORA, from exploited-CVE history and patch response to contract clauses and evidence packs.
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