CVE Vulnerability Catalog

Translated CVE descriptions from NVD NIST - in English

Browse vulnerabilities by package

CISA KEV catalog updated: (v2026.11.06)

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CVE-2026-55012
High

An integer overflow or wraparound vulnerability has been discovered in Microsoft Defender. This flaw allows an unauthorized attacker to execute code locally.

CVE-2026-55011
High

An integer underflow (wrap or wraparound) vulnerability in Microsoft Defender allows an unauthorized attacker to execute code locally.

CVE-2026-55009
HighEPSS 73%

A deserialization of untrusted data vulnerability in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

CVE-2026-55006
High

Insufficient granularity of access control in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.

CVE-2026-55005
HighEPSS 62%

A heap-based buffer overflow vulnerability in Microsoft Exchange Server allows an authorized attacker to execute code remotely over a network.

CVE-2026-55004
High

Double free in Microsoft Printer Drivers allows an authorized attacker to elevate privileges locally.

CVE-2026-55002
High

A vulnerability in SQL Server allows an authorized attacker to elevate privileges over a network via external control of file name or path.

CVE-2026-55001
High

Improper certificate validation in Windows Active Directory allows an authorized attacker to elevate privileges locally.

CVE-2026-54999
High

A race condition in Windows TCP/IP stack allows concurrent access to shared resources without proper synchronization. This enables an unauthorized attacker to execute code over an adjacent network.

CVE-2026-54996
High

A race condition vulnerability has been found in the Windows USB Print Driver during concurrent access to a shared resource. This flaw allows an authorized attacker to elevate privileges locally.

CVE-2026-54995
High

A use-after-free vulnerability in the Reliable Multicast Transport (RMCAST) driver allows an unauthorized attacker to execute code remotely over the network.

CVE-2026-54993
High

A heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.

CVE-2026-54992
High

A heap-based buffer overflow in Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code locally.

CVE-2026-54991
High

A race condition vulnerability in the Windows USB Print Driver allows an authorized local attacker to elevate privileges by exploiting improper synchronization of a shared resource.

CVE-2026-54989
High

A use-after-free vulnerability exists in the Quality Windows Audio/Video Experience (QWAVE) service. An authorized attacker can exploit this to elevate privileges locally.

CVE-2026-54987
High

Windows Overlay Filter has a heap-based buffer overflow vulnerability that allows an authorized attacker to elevate privileges locally.

CVE-2026-54986
HighEPSS 75%

A heap-based buffer overflow in Windows Win32K allows an authorized attacker to elevate privileges locally.

CVE-2026-54983
HighEPSS 52%

A stack-based buffer overflow vulnerability in Active Directory Federation Services (AD FS) allows an unauthorized attacker to remotely execute code or cause a denial of service (DoS) by sending a specially crafted network request.

CVE-2026-54982
High

An integer underflow (wrap or wraparound) vulnerability in the Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute code over an adjacent network.

CVE-2026-54433
High

In Roundcube Webmail before versions 1.6.17 and 1.7.x before 1.7.2, a stored Cross-Site Scripting (XSS) vulnerability exists via a crafted plain-text email message. The attacker-controlled JavaScript executes within the victim's authenticated session simply by opening or previewing the message (zero-click).

Vulnerability data from NVD (NIST) · CISA KEV · EPSS