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
| CVE | Product | EPSS |
|---|---|---|
| CVE-2010-3765 | Mozilla Multiple Products Remote Code Execution Vulnerability | 83.2% |
| CVE-2024-9680 | Mozilla Firefox Use-After-Free Vulnerability | 23.2% |
| CVE-2016-9079 | Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability | 87.4% |
| CVE-2015-4495 | Mozilla Firefox Security Feature Bypass Vulnerability | 68.6% |
| CVE-2019-11708 | Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability | 55.9% |
| CVE-2019-11707 | Mozilla Firefox and Thunderbird Type Confusion Vulnerability | 38.0% |
| CVE-2013-1690 | Mozilla Firefox and Thunderbird Denial-of-Service Vulnerability | 69.0% |
| CVE-2022-26486 | Mozilla Firefox Use-After-Free Vulnerability | 2.4% |
| CVE-2022-26485 | Mozilla Firefox Use-After-Free Vulnerability | 14.3% |
| CVE-2013-1675 | Mozilla Firefox Information Disclosure Vulnerability | 6.7% |
| CVE-2020-6820 | Mozilla Firefox And Thunderbird Use-After-Free Vulnerability | 7.1% |
| CVE-2020-6819 | Mozilla Firefox And Thunderbird Use-After-Free Vulnerability | 3.0% |
| CVE-2019-17026 | Mozilla Firefox And Thunderbird Type Confusion Vulnerability | 46.3% |
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.