2026 CVE Vulnerabilities

56,990 CVEs published in 2026.

CVE IDSeverityCVSSDescription
CVE-2026-56185MEDIUM6.5Improper authentication in Windows Admin Center allows an authorized attacker to disclose information over a network.
CVE-2026-56170HIGH7.5Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service ove...
CVE-2026-56169HIGH8.8Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
CVE-2026-56164CRITICAL9.8Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate p...
CVE-2026-56155HIGH7.8Insufficient granularity of access control in Active Directory Federation Services (AD FS) allows an authorized attacker...
CVE-2026-55948HIGH7.8Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55899HIGH7.8Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-55144HIGH7.1Missing cryptographic step in Windows CryptoAPI allows an authorized attacker to perform tampering locally.
CVE-2026-55014HIGH7.8Improper access control in Windows Remote Help Defense allows an authorized attacker to elevate privileges locally.
CVE-2026-55012HIGH7.8Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.
CVE-2026-55011HIGH7.8Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.
CVE-2026-55009HIGH7.8Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges local...
CVE-2026-55008CRITICAL9.6Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows...
CVE-2026-55006HIGH7.8Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privile...
CVE-2026-55005HIGH8.8Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.
CVE-2026-55004HIGH7.8Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.
CVE-2026-55003MEDIUM6.5Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.
CVE-2026-55002HIGH8.8External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.
CVE-2026-55001HIGH7.8Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally.
CVE-2026-55000MEDIUM6.4Use after free in Windows USB Print Driver allows an unauthorized attacker to elevate privileges with a physical attack.
CVE-2026-54999HIGH8.8Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an ...
CVE-2026-54997MEDIUM5.5Use of uninitialized resource in Windows SMB allows an authorized attacker to disclose information locally.
CVE-2026-54996HIGH7Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Print Driver ...
CVE-2026-54995CRITICAL9.8Use after free in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over a ne...
CVE-2026-54993HIGH7.8Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally...

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