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
41 vulnerabilities Clear filters Data updated on 03 Nov 2026
CVEProductPhaseEPSSCVSSIndexExploited on
CVE-2016-3081Apache Struts Command Injection VulnerabilityRising fast96.5%8.18.508 Oct 2026
CVE-2026-34486Apache Tomcat Missing Encryption of Sensitive Data VulnerabilityActively exploited98.5%7.58.404 Aug 2026
CVE-2026-34197Apache ActiveMQ Improper Input Validation VulnerabilityBackground exploitation98.3%8.88.316 Apr 2026
CVE-2024-38475Apache HTTP Server Improper Escaping of Output VulnerabilityBackground exploitation99.96%9.19.001 May 2025
CVE-2025-24813Apache Tomcat Path Equivalence VulnerabilityBackground exploitation99.9%10.09.401 Apr 2025
CVE-2024-45195Apache OFBiz Forced Browsing VulnerabilityBackground exploitation99.98%9.89.304 Feb 2025
CVE-2024-27348Apache HugeGraph-Server Improper Access Control VulnerabilityBackground exploitation99.2%9.89.318 Sept 2024
CVE-2024-38856Apache OFBiz Incorrect Authorization VulnerabilityBackground exploitation99.4%8.18.027 Aug 2024
CVE-2024-32113Apache OFBiz Path Traversal VulnerabilityBackground exploitation99.9%9.19.007 Aug 2024
CVE-2020-17519Apache Flink Improper Access Control VulnerabilityBackground exploitation98.0%9.19.023 May 2024
CVE-2023-27524Apache Superset Insecure Default Initialization of Resource VulnerabilityBackground exploitation98.1%8.98.908 Jan 2024
CVE-2023-46604Apache ActiveMQ Deserialization of Untrusted Data VulnerabilityBackground exploitation99.99%10.010.002 Nov 2023
CVE-2023-33246Apache RocketMQ Command Execution VulnerabilityBackground exploitation96.6%9.89.206 Sept 2023
CVE-2016-8735Apache Tomcat Remote Code Execution VulnerabilityBackground exploitation90.3%9.89.012 May 2023
CVE-2021-45046Apache Log4j2 Deserialization of Untrusted Data VulnerabilityBackground exploitation99.98%9.09.601 May 2023
CVE-2022-33891Apache Spark Command Injection VulnerabilityBackground exploitation93.2%8.88.107 Mar 2023
CVE-2022-24706Apache CouchDB Insecure Default Initialization of Resource VulnerabilityBackground exploitation92.5%9.89.125 Aug 2022
CVE-2022-24112Apache APISIX Authentication Bypass VulnerabilityBackground exploitation96.1%9.89.225 Aug 2022
CVE-2020-1956Apache Kylin OS Command Injection VulnerabilityBackground exploitation97.4%8.88.225 Mar 2022
CVE-2017-12617Apache Tomcat Remote Code Execution VulnerabilityBackground exploitation99.97%8.18.625 Mar 2022
CVE-2017-12615Apache Tomcat on Windows Remote Code Execution VulnerabilityBackground exploitation99.7%8.19.225 Mar 2022
CVE-2013-2251Apache Struts Improper Input Validation VulnerabilityBackground exploitation100.00%9.89.325 Mar 2022
CVE-2020-1938Apache Tomcat Improper Privilege Management VulnerabilityBackground exploitation99.3%9.89.303 Mar 2022
CVE-2017-9791Apache Struts 1 Improper Input Validation VulnerabilityBackground exploitation98.9%9.89.310 Feb 2022
CVE-2016-3088Apache ActiveMQ Improper Input Validation VulnerabilityBackground exploitation98.5%9.89.310 Feb 2022
CVE-2012-0391Apache Struts 2 Improper Input Validation VulnerabilityBackground exploitation75.6%9.88.621 Jan 2022
CVE-2006-1547Apache Struts 1 ActionForm Denial-of-Service VulnerabilityBackground exploitation54.6%7.57.021 Jan 2022
CVE-2020-13927Apache Airflow's Experimental API Authentication BypassBackground exploitation99.8%9.89.318 Jan 2022
CVE-2020-11978Apache Airflow Command InjectionBackground exploitation99.2%8.88.318 Jan 2022
CVE-2021-44228Apache Log4j2 Remote Code Execution VulnerabilityBackground exploitation100.00%10.010.010 Dec 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.