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

32 vulnerabilities confirmed exploited in the last 30 days; 39% 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
32
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Exploited by the day of disclosure, last 12 months
39%
of 301 confirmed
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Median days from disclosure to confirmed exploitation
4
last 12 months; list sorted fastest first
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Used in ransomware campaigns, last 12 months
25
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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 39% 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 66% 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.
Vendors by vulnerabilities confirmed exploited
Microsoft80
Cisco28
Apple19
Fortinet17
Google16
Linux16
Ivanti13
Adobe11
Citrix11
Palo Alto Networks11

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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

27 exploited CVEs
Showing 1 to 10. Open a CVE for every field; narrower screens show fewer columns.
CVEVendor and vulnerabilityConfirmed exploitedAfter publicationSeverityEPSS
CVE-2023-4911
CISA KEV
GNU · GNU C Library
GNU C Library Buffer Overflow Vulnerability
CISA remediation due for federal agencies: Dec 12, 2023
Nov 21, 202349 daysHigh 7.864%
CVE-2023-36584
CISA KEV
Microsoft · Windows
Microsoft Windows Mark of the Web (MOTW) Security Feature Bypass Vulnerability
CISA remediation due for federal agencies: Dec 7, 2023
Nov 16, 202337 daysMedium 5.43%
CVE-2023-36036
CISA KEV
Microsoft · Windows
Microsoft Windows Cloud Files Mini Filter Driver Privilege Escalation Vulnerability
CISA remediation due for federal agencies: Dec 5, 2023
Nov 14, 2023Same dayHigh 7.817%
CVE-2023-36033
CISA KEV
Microsoft · Windows
Microsoft Windows Desktop Window Manager (DWM) Core Library Privilege Escalation Vulnerability
CISA remediation due for federal agencies: Dec 5, 2023
Nov 14, 2023Same dayHigh 7.811%
CVE-2023-36025
CISA KEV
Microsoft · Windows
Microsoft Windows SmartScreen Security Feature Bypass Vulnerability
CISA remediation due for federal agencies: Dec 5, 2023
Nov 14, 2023Same dayHigh 8.888%
CVE-2023-36424
CISA KEV
Microsoft · Windows
Microsoft Windows Out-of-Bounds Read Vulnerability
CISA remediation due for federal agencies: Apr 27, 2026
Nov 12, 20232 days before publicationHigh 7.812%
CVE-2023-28229
CISA KEV
Microsoft · Windows CNG Key Isolation Service
Microsoft Windows CNG Key Isolation Service Privilege Escalation Vulnerability
CISA remediation due for federal agencies: Oct 25, 2023
Oct 4, 2023176 daysHigh 7.02%
CVE-2023-36802
CISA KEV
Microsoft · Streaming Service Proxy
Microsoft Streaming Service Proxy Privilege Escalation Vulnerability
CISA remediation due for federal agencies: Oct 3, 2023
Sep 12, 2023Same dayHigh 7.828%
CVE-2023-36884
CISA KEV
Ransomware
Microsoft · Windows
Microsoft Windows Search Remote Code Execution Vulnerability
CISA remediation due for federal agencies: Aug 29, 2023
Jul 17, 20236 daysHigh 7.599%
CVE-2023-36874
CISA KEV
Microsoft · Windows
Microsoft Windows Error Reporting Service Privilege Escalation Vulnerability
CISA remediation due for federal agencies: Aug 1, 2023
Jul 11, 2023Same dayHigh 7.843%

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.

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