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
9 vulnerabilities Clear filters Data updated on 03 Nov 2026
CVEProductPhaseEPSSCVSSIndexExploited on
CVE-2015-5287Red Hat Automatic Bug Reporting Tool Privilege Escalation VulnerabilityActively exploited5.0%7.84.526 Aug 2026
CVE-2015-3246Red Hat Libuser Race Condition VulnerabilityActively exploited8.5%7.44.426 Aug 2026
CVE-2018-14667Red Hat JBoss RichFaces Framework Expression Language Injection VulnerabilityBackground exploitation74.2%9.88.528 Sept 2023
CVE-2021-3560Red Hat Polkit Incorrect Authorization VulnerabilityBackground exploitation23.7%7.85.612 May 2023
CVE-2021-4034Red Hat Polkit Out-of-Bounds Read and Write VulnerabilityBackground exploitation94.9%7.88.427 Jun 2022
CVE-2010-1428Red Hat JBoss Information Disclosure VulnerabilityBackground exploitation52.7%5.96.925 May 2022
CVE-2010-0738Red Hat JBoss Authentication Bypass VulnerabilityBackground exploitation73.8%3.76.725 May 2022
CVE-2017-12149Red Hat JBoss Application Server Remote Code Execution VulnerabilityBackground exploitation90.7%9.89.610 Dec 2021
CVE-2010-1871Red Hat Linux JBoss Seam 2 Remote Code Execution VulnerabilityBackground exploitation83.4%8.88.410 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.