CISA Known Exploited Vulnerabilities Directory

Explore every threat in the CISA Known Exploited Vulnerabilities (KEV) catalog, enhanced with plain-English executive analysis, AWS relevance, and technical remediation guidance.

Showing 11–20 of 390 records

CVE Vendor Product Added Due Status
CVE-2026-56155 — Microsoft Active Directory Federation Services Insufficient Granularity of Access Control Vulnerability
Microsoft Active Directory Federation Services contains an insufficient granularity of access control vulnerability that allows an authorized attacker to elevate privileges locally.
Microsoft Active Directory Federation Services Jul 14, 2026 Jul 28, 2026
CVE-2026-56164 — Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability
Microsoft SharePoint contains a missing authentication for critical function vulnerability that allows an unauthorized attacker to elevate privileges over a network.
Microsoft SharePoint Server Jul 14, 2026 Jul 17, 2026
CVE-2026-45659 — Microsoft SharePoint Server Deserialization of Untrusted Data Vulnerability
Microsoft SharePoint Server contains a deserialization of untrusted data vulnerability which allows an authorized attacker to execute code over a network.
Microsoft SharePoint Server Jul 1, 2026 Jul 4, 2026 Ransomware
CVE-2008-4250 — Microsoft Windows Buffer Overflow Vulnerability
Microsoft Windows contains a buffer overflow vulnerability in the Windows Server Service that allows remote attackers to execute arbitrary code via a crafted RPC request that triggers an overflow during path canonicalization.
Microsoft Windows May 20, 2026 Jun 3, 2026
CVE-2009-1537 — Microsoft DirectX NULL Byte Overwrite Vulnerability
Microsoft DirectX contains a NULL byte overwrite vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow which could allow remote attackers to execute arbitrary code via a crafted QuickTime media file.
Microsoft DirectX May 20, 2026 Jun 3, 2026
CVE-2010-0249 — Microsoft Internet Explorer Use-After-Free Vulnerability
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Microsoft Internet Explorer May 20, 2026 Jun 3, 2026
CVE-2010-0806 — Microsoft Internet Explorer Use-After-Free Vulnerability
Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.
Microsoft Internet Explorer May 20, 2026 Jun 3, 2026
CVE-2026-41091 — Microsoft Defender Link Following Vulnerability
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
Microsoft Defender May 20, 2026 Jun 3, 2026
CVE-2026-45498 — Microsoft Defender Denial of Service Vulnerability
Microsoft Defender contains an unspecified vulnerability that allows for denial of service.
Microsoft Defender May 20, 2026 Jun 3, 2026
CVE-2026-42897 — Microsoft Exchange Server Cross-Site Scripting Vulnerability
Microsoft Exchange Server contains a cross-site scripting vulnerability during web page generation in Outlook Web Access and when certain interaction conditions are met, arbitrary JavaScript can be executed in the browser context.
Microsoft Microsoft May 15, 2026 May 29, 2026