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Exploited vulnerabilities

The CISA Known Exploited Vulnerabilities catalogue, with severity and affected-product data from the National Vulnerability Database. Everything on this list has been observed in real attacks — it is not a forecast.

1695
On the catalogue
8
Added in 7 days
7
Due within 7 days
354
Used in ransomware
Exploited onlyUsed in ransomwarecriticalhighmediumlowPriorityRecently addedDue soonestCVSS
VendorMicrosoft 386Cisco 96Apple 94Adobe 80Google 73Oracle 45Apache 39Ivanti 35Fortinet 29Linux 28
CVEAffectedCVSSAddedDue
CVE-2014-1812Microsoft Windows2021-11-032022-05-03ransomware
CVE-2013-2551Microsoft Internet Explorer2022-03-282022-04-18ransomware
CVE-2012-0158Microsoft MSCOMCTL.OCX2021-11-032022-05-03ransomware
CVE-2026-68820Microsoft Windows Ancillary Function Driver for WinSock2026-08-112026-08-25
CVE-2026-55040Microsoft SharePoint2026-08-182026-08-21
CVE-2026-33824Microsoft Internet Key Exchange (IKE) Service Extensions2026-08-182026-08-21
CVE-2026-58644Microsoft SharePoint2026-07-162026-07-19
CVE-2026-56164Microsoft SharePoint Server2026-07-142026-07-17
CVE-2026-56155Microsoft Active Directory Federation Services2026-07-142026-07-28
CVE-2026-50522Microsoft SharePoint2026-07-222026-07-25
CVE-2026-45498Microsoft Defender2026-05-202026-06-03
CVE-2026-42897Microsoft Microsoft2026-05-152026-05-29
CVE-2026-41091Microsoft Defender2026-05-202026-06-03
CVE-2026-32202Microsoft Windows2026-04-282026-05-12
CVE-2026-32201Microsoft SharePoint Server2026-04-142026-04-28
CVE-2026-21533Microsoft Windows2026-02-102026-03-03
CVE-2026-21525Microsoft Windows2026-02-102026-03-03
CVE-2026-21519Microsoft Windows2026-02-102026-03-03
CVE-2026-21514Microsoft Office2026-02-102026-03-03
CVE-2026-21513Microsoft Windows2026-02-102026-03-03
CVE-2026-21510Microsoft Windows2026-02-102026-03-03
CVE-2026-21509Microsoft Office2026-01-262026-02-16
CVE-2026-20963Microsoft SharePoint2026-03-182026-03-21
CVE-2026-20805Microsoft Windows2026-01-132026-02-03
CVE-2025-62221Microsoft Windows2025-12-092025-12-30
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