CISA KEV · ENISA EUVD · FIRST EPSS

Exploited vulnerabilities

The vulnerabilities attackers actually use, gathered from public sources and ranked by priority. Updated automatically, every day.

1,783exploited vulnerabilities tracked
8added in 7 days
35added in 30 days
37rising fast
361used by ransomware
665to fix within 24 h
8 vulnerabilities Clear filters Data updated on 03 Nov 2026
CVEProductPhaseEPSSCVSSIndexExploited on
CVE-2026-94127F5 BIG-IP APM Heap-based Buffer Overflow VulnerabilityActively exploited26.6%9.36.922 Sept 2026
CVE-2025-53521F5 BIG-IP Stack-Based Buffer Overflow VulnerabilityBackground exploitation2.3%9.35.627 Mar 2026
CVE-2023-46748F5 BIG-IP Configuration Utility SQL Injection VulnerabilityBackground exploitation4.3%8.84.831 Oct 2023
CVE-2023-46747F5 BIG-IP Configuration Utility Authentication Bypass VulnerabilityBackground exploitation96.7%9.89.831 Oct 2023
CVE-2022-1388F5 BIG-IP Missing Authentication VulnerabilityBackground exploitation99.95%9.89.910 May 2022
CVE-2021-22991F5 BIG-IP Traffic Management Microkernel Buffer OverflowBackground exploitation62.4%9.88.218 Jan 2022
CVE-2021-22986F5 BIG-IP and BIG-IQ Centralized Management iControl REST Remote Code Execution VulnerabilityBackground exploitation99.9%9.89.903 Nov 2021
CVE-2020-5902F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution VulnerabilityBackground exploitation100.00%9.89.903 Nov 2021

How we rank vulnerabilities

A vulnerability joins this list as soon as CISA adds it to its KEV catalog or ENISA flags it as exploited in the EUVD.

The CheckOps priority index, out of 10, combines severity (CVSS), the probability of exploitation within 30 days (EPSS, FIRST) and public exploitation signals.

Above 8, we recommend patching within 24 hours; above 6, or as soon as a vulnerability is exploited, within 7 days.

Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors.