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HIGH Severity CVEs

CVSS 7.0 – 8.9

CVSS 7.0–8.9 — serious vulnerabilities that can lead to significant data exposure, privilege escalation, or service disruption

143,102
Total
363
Known Exploited
Showing 73,421 of 143,102 total · Page 443/1469
7.5
CVE-2026-21226

Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execut

7.8
CVE-2026-21224

Stack-based buffer overflow in Azure Connected Machine Agent allows an authorized attacker to elevate privileges locally

7.0
CVE-2026-21221

Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Managem

7.0
CVE-2026-21219

Use after free in Inbox COM Objects allows an unauthorized attacker to execute code locally.

7.5
CVE-2026-20965

Improper verification of cryptographic signature in Windows Admin Center allows an authorized attacker to elevate privil

7.8
CVE-2026-20957

Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally

7.8
CVE-2026-20956

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-20955

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

8.4
CVE-2026-20953

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

8.4
CVE-2026-20952

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-20951

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-20950

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-20949

Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature locally.

7.8
CVE-2026-20948

Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.

8.8
CVE-2026-20947

Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allo

7.8
CVE-2026-20946

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

8.4
CVE-2026-20944

Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally.

7.0
CVE-2026-20943

Untrusted search path in Microsoft Office allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-20941

Improper link resolution before file access ('link following') in Host Process for Windows Tasks allows an authorized at

7.8
CVE-2026-20940

Heap-based buffer overflow in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges

7.8
CVE-2026-20938

Untrusted pointer dereference in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to el

7.5
CVE-2026-20934

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows

8.0
CVE-2026-20931

External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges o

7.5
CVE-2026-20929

Improper access control in Windows HTTP.sys allows an authorized attacker to elevate privileges over a network.

7.5
CVE-2026-20926

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows

7.8
CVE-2026-20924

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-20923

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-20922

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.

7.5
CVE-2026-20921

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows

7.8
CVE-2026-20920

Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

7.5
CVE-2026-20919

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows

7.8
CVE-2026-20918

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Servic

7.8
CVE-2026-20877

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

7.5
CVE-2026-20875

Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker t

7.8
CVE-2026-20874

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Servic

7.8
CVE-2026-20873

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Servic

7.8
CVE-2026-20871

Use after free in Desktop Windows Manager allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-20870

Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

7.0
CVE-2026-20869

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Local Session Man

8.8
CVE-2026-20868

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execut

7.8
CVE-2026-20867

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Servic

7.8
CVE-2026-20866

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Servic

7.8
CVE-2026-20865

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-20864

Heap-based buffer overflow in Connected Devices Platform Service (Cdpsvc) allows an authorized attacker to elevate privi

7.0
CVE-2026-20863

Double free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-20861

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Servic

7.8
CVE-2026-20860

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an

7.8
CVE-2026-20859

Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-20858

Use after free in Windows Management Services allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-20857

Untrusted pointer dereference in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privile

Frequently Asked Questions

What does HIGH severity mean for CVEs?

CVSS 7.0–8.9 — serious vulnerabilities that can lead to significant data exposure, privilege escalation, or service disruption

How many high severity CVEs exist?

There are 143,102 CVE records rated HIGH in our database. Of these, 363 are listed in CISA's Known Exploited Vulnerabilities catalog.

How should I prioritize high severity vulnerabilities?

HIGH severity vulnerabilities should be patched immediately, especially if they are in the CISA KEV catalog or have a high EPSS score. Use CyberStrike to automatically detect and prioritize these vulnerabilities across your infrastructure.

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