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 (2026-10-19 09:00 UTC)

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.

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Exploited by disclosure day

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.

Vendors by vulnerabilities confirmed exploited

Microsoft	81	49 (60%)	0	11
Cisco	29	16 (55%)	0	2
Apple	19	2 (11%)	2	0
Fortinet	18	12 (67%)	0	3
Google	15	6 (40%)	1	0
Linux	15	0 (0%)	106	0
Ivanti	13	6 (46%)	2	2
Citrix	11	5 (45%)	5	1
Palo Alto Networks	11	4 (36%)	6	3
Adobe	10	3 (30%)	45	0
Oracle	10	2 (20%)	5	3
SonicWall	9	5 (56%)	-1	4

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Every confirmed exploitation

Showing: confirmed in 2026, Operating systems

Confirmed exploited in 2026. Product class: Operating systems (the site's classifier of CISA's product names). Clear these

28 exploited CVEs, showing 1 to 28

CVE	Vendor and vulnerability	Confirmed exploited	After publication	Severity	EPSS
CVE-2026-96951 CISA KEV	Microsoft · Windows Microsoft Windows Command Injection Vulnerability CISA remediation due for federal agencies: Oct 16, 2026	Oct 7, 2026	6 days before publication	High 8.8	2%
CVE-2025-39682 CISA KEV	Linux · Kernel Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability CISA remediation due for federal agencies: Sep 21, 2026	Sep 18, 2026	378 days	Critical 9.8	3%
CVE-2026-53266 CISA KEV	Linux · Kernel Linux Kernel Out-of-Bounds Write Vulnerability CISA remediation due for federal agencies: Sep 21, 2026	Sep 17, 2026	84 days	High 8.8	1%
CVE-2025-39964 CISA KEV	Linux · Kernel Linux Kernel Race Condition Vulnerability CISA remediation due for federal agencies: Sep 21, 2026	Sep 17, 2026	339 days	High 7.8	1%
CVE-2026-85880 CISA KEV	Microsoft · Windows Microsoft Windows Heap-Based Buffer Overflow Vulnerability CISA remediation due for federal agencies: Sep 22, 2026	Sep 7, 2026	1 day before publication	High 7.8	4%
CVE-2026-81963 CISA KEV	Microsoft · Windows Microsoft Windows Link Following Vulnerability CISA remediation due for federal agencies: Sep 22, 2026	Sep 6, 2026	2 days before publication	High 7.8	0%
CVE-2026-53362 CISA KEV	Linux · Kernel Linux Kernel Unspecified Vulnerability CISA remediation due for federal agencies: Aug 30, 2026	Aug 27, 2026	54 days	High 7.8	1%
CVE-2015-3246 CISA KEV	Red Hat · Libuser Red Hat Libuser Race Condition Vulnerability CISA remediation due for federal agencies: Sep 9, 2026	Aug 26, 2026	4,033 days	High 7.4	9%
CVE-2022-0995 CISA KEV	Linux · Kernel Linux Kernel Out-of-Bounds Write Vulnerability CISA remediation due for federal agencies: Aug 29, 2026	Aug 25, 2026	1,614 days	High 7.8	9%
CVE-2015-5287 CISA KEV	Red Hat · Automatic Bug Reporting Tool Red Hat Automatic Bug Reporting Tool Privilege Escalation Vulnerability CISA remediation due for federal agencies: Sep 9, 2026	Aug 25, 2026	3,914 days	High 7.8	5%
CVE-2026-65400 CISA KEV	Apple · macOS Apple macOS Improper Authentication Vulnerability CISA remediation due for federal agencies: Aug 21, 2026	Aug 13, 2026	7 days	Critical 9.8	2%
CVE-2026-68820 CISA KEV	Microsoft · Windows Ancillary Function Driver for WinSock Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability CISA remediation due for federal agencies: Aug 25, 2026	Aug 5, 2026	6 days before publication	High 7.0	0%
CVE-2026-56155 CISA KEV	Microsoft · Active Directory Federation Services Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability CISA remediation due for federal agencies: Jul 28, 2026	Jul 14, 2026	Same day	High 7.8	0%
CVE-2022-0492 CISA KEV	Linux · Kernel Linux Kernel Improper Authentication Vulnerability CISA remediation due for federal agencies: Jun 5, 2026	Jun 1, 2026	1,552 days	High 7.8	6%
CVE-2009-1537 CISA KEV	Microsoft · DirectX Microsoft DirectX NULL Byte Overwrite Vulnerability CISA remediation due for federal agencies: Jun 3, 2026	May 19, 2026	6,199 days	High 8.8	51%
CVE-2008-4250 CISA KEV	Microsoft · Windows Microsoft Windows Buffer Overflow Vulnerability CISA remediation due for federal agencies: Jun 3, 2026	May 19, 2026	6,417 days	Critical 9.8	99%
CVE-2026-31431 CISA KEV	Linux · Kernel Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability CISA remediation due for federal agencies: May 15, 2026	Apr 28, 2026	6 days	High 7.8	3%
CVE-2026-32202 CISA KEV	Microsoft · Windows Microsoft Windows Protection Mechanism Failure Vulnerability CISA remediation due for federal agencies: May 12, 2026	Apr 26, 2026	12 days	Medium 4.3	5%
CVE-2026-33824 CISA KEV	Microsoft · Internet Key Exchange (IKE) Service Extensions Microsoft Internet Key Exchange (IKE) Service Extensions Double Free Vulnerability CISA remediation due for federal agencies: Aug 21, 2026	Apr 12, 2026	2 days before publication	Critical 9.8	2%
CVE-2008-0015 CISA KEV	Microsoft · Windows Microsoft Windows Video ActiveX Control Remote Code Execution Vulnerability CISA remediation due for federal agencies: Mar 10, 2026	Feb 16, 2026	6,068 days	High 8.8	77%
CVE-2026-21533 CISA KEV	Microsoft · Windows Microsoft Windows Improper Privilege Management Vulnerability CISA remediation due for federal agencies: Mar 3, 2026	Feb 10, 2026	Same day	High 7.8	4%
CVE-2026-21525 CISA KEV	Microsoft · Windows Microsoft Windows NULL Pointer Dereference Vulnerability CISA remediation due for federal agencies: Mar 3, 2026	Feb 10, 2026	Same day	Medium 6.2	5%
CVE-2026-21519 CISA KEV	Microsoft · Windows Microsoft Windows Type Confusion Vulnerability CISA remediation due for federal agencies: Mar 3, 2026	Feb 10, 2026	Same day	High 7.8	2%
CVE-2026-21513 CISA KEV	Microsoft · Windows Microsoft MSHTML Framework Protection Mechanism Failure Vulnerability CISA remediation due for federal agencies: Mar 3, 2026	Feb 10, 2026	Same day	High 8.8	16%
CVE-2026-21510 CISA KEV	Microsoft · Windows Microsoft Windows Shell Protection Mechanism Failure Vulnerability CISA remediation due for federal agencies: Mar 3, 2026	Feb 10, 2026	Same day	High 8.8	25%
CVE-2026-24061 CISA KEV	GNU · InetUtils GNU InetUtils Argument Injection Vulnerability CISA remediation due for federal agencies: Feb 16, 2026	Jan 26, 2026	5 days	Critical 9.8	99%
CVE-2018-14634 CISA KEV	Linux · Kernel Linux Kernel Integer Overflow Vulnerability CISA remediation due for federal agencies: Feb 16, 2026	Jan 26, 2026	2,680 days	High 7.8	15%
CVE-2026-20805 CISA KEV	Microsoft · Windows Microsoft Windows Information Disclosure Vulnerability CISA remediation due for federal agencies: Feb 3, 2026	Jan 13, 2026	Same day	Medium 5.5	7%

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.