Exploited vulnerabilities
The vulnerabilities attackers actually use, gathered from public sources and ranked by priority. Updated automatically, every day.
1,786exploited vulnerabilities tracked
5added in 7 days
38added in 30 days
38rising fast
361used by ransomware
667to fix within 24 h
| CVE | Product | EPSS |
|---|---|---|
| CVE-2021-42013 | Apache HTTP Server Path Traversal Vulnerability | 99.96% |
| CVE-2021-41773 | Apache HTTP Server Path Traversal Vulnerability | 99.99% |
| CVE-2021-40539 | Zoho ManageEngine ADSelfService Plus Authentication Bypass Vulnerability | 99.0% |
| CVE-2021-40444 | Microsoft MSHTML Remote Code Execution Vulnerability | 97.8% |
| CVE-2021-38649 | Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability | 2.9% |
| CVE-2021-38648 | Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability | 11.4% |
| CVE-2021-38647 | Microsoft Open Management Infrastructure (OMI) Remote Code Execution Vulnerability | 99.9% |
| CVE-2021-38645 | Microsoft Open Management Infrastructure (OMI) Privilege Escalation Vulnerability | 2.7% |
| CVE-2021-38003 | Google Chromium V8 Memory Corruption Vulnerability | 38.6% |
| CVE-2021-38000 | Google Chromium Intents Improper Input Validation Vulnerability | 4.9% |
| CVE-2021-37976 | Google Chromium Information Disclosure Vulnerability | 19.9% |
| CVE-2021-37975 | Google Chromium V8 Use-After-Free Vulnerability | 34.9% |
| CVE-2021-37973 | Google Chromium Portals Use-After-Free Vulnerability | 11.7% |
| CVE-2021-36955 | Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Vulnerability | 4.1% |
| CVE-2021-36948 | Microsoft Windows Update Medic Service Privilege Escalation Vulnerability | 23.3% |
| CVE-2021-36942 | Microsoft Windows Local Security Authority (LSA) Spoofing Vulnerability | 66.0% |
| CVE-2021-36742 | Trend Micro Multiple Products Improper Input Validation Vulnerability | 1.5% |
| CVE-2021-36741 | Trend Micro Multiple Products Improper Input Validation Vulnerability | 5.0% |
| CVE-2021-35464 | ForgeRock Access Management (AM) Core Server Remote Code Execution Vulnerability | 100.00% |
| CVE-2021-35395 | Realtek AP-Router SDK Buffer Overflow Vulnerability | 98.1% |
| CVE-2021-35211 | SolarWinds Serv-U Remote Code Execution Vulnerability | 91.2% |
| CVE-2021-34527 | Microsoft Windows Print Spooler Remote Code Execution Vulnerability | 99.8% |
| CVE-2021-34523 | Microsoft Exchange Server Privilege Escalation Vulnerability | 99.99% |
| CVE-2021-34473 | Microsoft Exchange Server Remote Code Execution Vulnerability | 100.00% |
| CVE-2021-34448 | Microsoft Windows Scripting Engine Memory Corruption Vulnerability | 40.1% |
| CVE-2021-33771 | Microsoft Windows Kernel Privilege Escalation Vulnerability | 10.2% |
| CVE-2021-33742 | Microsoft Windows MSHTML Platform Remote Code Execution Vulnerability | 59.4% |
| CVE-2021-33739 | Microsoft Desktop Window Manager (DWM) Core Library Privilege Escalation Vulnerability | 6.6% |
| CVE-2021-31979 | Microsoft Windows Kernel Privilege Escalation Vulnerability | 4.5% |
| CVE-2021-31956 | Microsoft Windows NTFS Privilege Escalation Vulnerability | 22.3% |
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.