Exploited now
Every vulnerability CISA confirms is being exploited in the wild: listed in its Known Exploited Vulnerabilities catalog, or assessed as actively exploited in its Vulnrichment data, often days before the catalog. When it was confirmed, how soon after the CVE went public, and the vendors attackers go after first. Refreshed every ten minutes. Sources.
Updated under an hour ago ()
What this means for you
28 vulnerabilities confirmed exploited in the last 30 days; 38% of the last 12 months' were exploited by the day they were disclosed. Add your stack to see which of them you run.
- Confirmed exploited, last 30 days
- 28
- Show in the list
- Exploited by the day of disclosure, last 12 months
- 38%
- of 295 confirmed
- Show in the list
- Median days from disclosure to confirmed exploitation
- 4
- last 12 months; list sorted fastest first
- Show in the list
- Used in ransomware campaigns, last 12 months
- 25
- Show in the list
What this means for a patch cycle
Half of the vulnerabilities CISA confirmed exploited in the last 12 months were confirmed within 4 days of going public, and 38% by the day they were published. A monthly patch cycle leaves those exposed for weeks. Products from the vendors below, especially internet-facing ones, need an emergency patch path measured in days.
Where attackers strike first
Vendors by vulnerabilities confirmed exploited in the last 24 months; the top five account for 67% of the twelve listed. This counts confirmed attacks, not disclosed flaws, so a vendor is not rewarded for publishing fewer CVEs. Mapped health IT products account for 1 of them.
Are any of these in your stack?
Name the products you run and see every CVE that affects them, with exploited ones first. Free for one product; subscribers add their whole inventory and are emailed the moment one is exploited.
Every confirmed exploitation
Showing: confirmed in 2023, Operating systems
Confirmed exploited in 2023. Product class: Operating systems (the site's classifier of CISA's product names). Clear these
| CVE | Vendor and vulnerability | Confirmed exploited | After publication | Severity | EPSS |
|---|---|---|---|---|---|
| CVE-2023-4911 CISA KEV | GNU · GNU C Library GNU C Library Buffer Overflow VulnerabilityCISA remediation due for federal agencies: Dec 12, 2023 | Nov 21, 2023 | 49 days | High 7.8 | 64% |
| CVE-2023-36584 CISA KEV | Microsoft · Windows Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass VulnerabilityCISA remediation due for federal agencies: Dec 7, 2023 | Nov 16, 2023 | 37 days | Medium 5.4 | 3% |
| CVE-2023-36036 CISA KEV | Microsoft · Windows Microsoft Windows Cloud Files Mini Filter Driver Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Dec 5, 2023 | Nov 14, 2023 | Same day | High 7.8 | 17% |
| CVE-2023-36033 CISA KEV | Microsoft · Windows Microsoft Windows Desktop Window Manager (DWM) Core Library Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Dec 5, 2023 | Nov 14, 2023 | Same day | High 7.8 | 11% |
| CVE-2023-36025 CISA KEV | Microsoft · Windows Microsoft Windows SmartScreen Security Feature Bypass VulnerabilityCISA remediation due for federal agencies: Dec 5, 2023 | Nov 14, 2023 | Same day | High 8.8 | 88% |
| CVE-2023-36424 CISA KEV | Microsoft · Windows Microsoft Windows Out-of-Bounds Read VulnerabilityCISA remediation due for federal agencies: Apr 27, 2026 | Nov 12, 2023 | 2 days before publication | High 7.8 | 12% |
| CVE-2023-28229 CISA KEV | Microsoft · Windows CNG Key Isolation Service Microsoft Windows CNG Key Isolation Service Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Oct 25, 2023 | Oct 4, 2023 | 176 days | High 7.0 | 2% |
| CVE-2023-36802 CISA KEV | Microsoft · Streaming Service Proxy Microsoft Streaming Service Proxy Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Oct 3, 2023 | Sep 12, 2023 | Same day | High 7.8 | 28% |
| CVE-2023-36884 CISA KEV Ransomware | Microsoft · Windows Microsoft Windows Search Remote Code Execution VulnerabilityCISA remediation due for federal agencies: Aug 29, 2023 | Jul 17, 2023 | 6 days | High 7.5 | 99% |
| CVE-2023-36874 CISA KEV | Microsoft · Windows Microsoft Windows Error Reporting Service Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Aug 1, 2023 | Jul 11, 2023 | Same day | High 7.8 | 43% |
| CVE-2023-32049 CISA KEV | Microsoft · Windows Microsoft Windows Defender SmartScreen Security Feature Bypass VulnerabilityCISA remediation due for federal agencies: Aug 1, 2023 | Jul 11, 2023 | Same day | High 8.8 | 4% |
| CVE-2023-32046 CISA KEV | Microsoft · Windows Microsoft Windows MSHTML Platform Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Aug 1, 2023 | Jul 11, 2023 | Same day | High 7.8 | 10% |
| CVE-2016-0165 CISA KEV | Microsoft · Win32k Microsoft Win32k Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Jul 13, 2023 | Jun 22, 2023 | 2,627 days | High 7.8 | 14% |
| CVE-2021-3560 CISA KEV | Red Hat · Polkit Red Hat Polkit Incorrect Authorization VulnerabilityCISA remediation due for federal agencies: Jun 2, 2023 | May 12, 2023 | 451 days | High 7.8 | 24% |
| CVE-2014-0196 CISA KEV | Linux · Kernel Linux Kernel Race Condition VulnerabilityCISA remediation due for federal agencies: Jun 2, 2023 | May 12, 2023 | 3,292 days | Medium 5.5 | 22% |
| CVE-2010-3904 CISA KEV | Linux · Kernel Linux Kernel Improper Input Validation VulnerabilityCISA remediation due for federal agencies: Jun 2, 2023 | May 12, 2023 | 4,540 days | High 7.8 | 16% |
| CVE-2023-29336 CISA KEV | Microsoft · Win32k Microsoft Win32K Privilege Escalation VulnerabilityCISA remediation due for federal agencies: May 30, 2023 | May 9, 2023 | Same day | High 7.8 | 41% |
| CVE-2019-8526 CISA KEV | Apple · macOS Apple macOS Use-After-Free VulnerabilityCISA remediation due for federal agencies: May 8, 2023 | Apr 17, 2023 | 1,216 days | High 7.8 | 1% |
| CVE-2023-28252 CISA KEV Ransomware | Microsoft · Windows Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation VulnerabilityCISA remediation due for federal agencies: May 2, 2023 | Apr 11, 2023 | Same day | High 7.8 | 49% |
| CVE-2019-1388 CISA KEV Ransomware | Microsoft · Windows Microsoft Windows Certificate Dialog Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Apr 28, 2023 | Apr 7, 2023 | 1,242 days | High 7.8 | 9% |
| CVE-2023-0266 CISA KEV | Linux · Kernel Linux Kernel Use-After-Free VulnerabilityCISA remediation due for federal agencies: Apr 20, 2023 | Mar 30, 2023 | 59 days | High 7.9 | 4% |
| CVE-2017-7494 CISA KEV Ransomware | Samba · Samba Samba Remote Code Execution VulnerabilityCISA remediation due for federal agencies: Apr 20, 2023 | Mar 30, 2023 | 2,130 days | Critical 9.8 | 99% |
| CVE-2023-24880 CISA KEV Ransomware | Microsoft · Windows Microsoft Windows SmartScreen Security Feature Bypass VulnerabilityCISA remediation due for federal agencies: Apr 4, 2023 | Mar 14, 2023 | Same day | Medium 4.4 | 78% |
| CVE-2023-21823 CISA KEV | Microsoft · Windows Microsoft Windows Graphic Component Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Mar 7, 2023 | Feb 14, 2023 | Same day | High 7.8 | 6% |
| CVE-2015-2291 CISA KEV Ransomware | Intel · Ethernet Diagnostics Driver for Windows Intel Ethernet Diagnostics Driver for Windows Denial-of-Service VulnerabilityCISA remediation due for federal agencies: Mar 3, 2023 | Feb 10, 2023 | 2,011 days | High 7.8 | 9% |
| CVE-2023-23376 CISA KEV Ransomware | Microsoft · Windows Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Mar 7, 2023 | Feb 8, 2023 | 6 days before publication | High 7.8 | 11% |
| CVE-2023-21674 CISA KEV | Microsoft · Windows Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation VulnerabilityCISA remediation due for federal agencies: Jan 31, 2023 | Jan 10, 2023 | 1 day | High 8.8 | 41% |
How to read this
"Confirmed exploited" is the date CISA added the CVE to its Known Exploited Vulnerabilities catalog or assessed it as actively exploited, whichever came first. It is when exploitation was confirmed publicly, not when attackers started, so "after publication" is an upper bound: attackers were there at least that soon. "By disclosure day" means confirmed on or before the day the CVE record was published, the closest public measure of a zero-day. Dates are US Eastern, the calendar CISA uses. Vendors are named as CISA's catalog names them, otherwise as the assigning CNA does. EPSS is FIRST's estimate of the chance of exploitation in the next 30 days.