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-2022-28810Zoho ManageEngine ADSelfService Plus Remote Code Execution VulnerabilityBackground exploitation71.0%6.86.607 Mar 2023
CVE-2022-47966Zoho ManageEngine Multiple Products Remote Code Execution VulnerabilityBackground exploitation99.8%9.89.923 Jan 2023
CVE-2022-35405Zoho ManageEngine Multiple Products Remote Code Execution VulnerabilityBackground exploitation99.9%9.89.322 Sept 2022
CVE-2021-44515Zoho Desktop Central Authentication Bypass VulnerabilityBackground exploitation99.9%9.89.310 Dec 2021
CVE-2021-44077Zoho ManageEngine ServiceDesk Plus Remote Code Execution VulnerabilityBackground exploitation93.3%9.89.101 Dec 2021
CVE-2021-37415Zoho ManageEngine ServiceDesk Authentication Bypass VulnerabilityBackground exploitation99.8%9.89.301 Dec 2021
CVE-2021-40539Zoho ManageEngine ADSelfService Plus Authentication Bypass VulnerabilityBackground exploitation99.0%9.89.903 Nov 2021
CVE-2020-10189Zoho ManageEngine Desktop Central File Upload VulnerabilityBackground exploitation99.9%9.89.303 Nov 2021
CVE-2019-8394Zoho ManageEngine ServiceDesk Plus (SDP) File Upload VulnerabilityBackground exploitation63.3%7.57.303 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.