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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 70/1469
8.8
CVE-2026-63514

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a ne

7.8
CVE-2026-63513

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

7.3
CVE-2026-62914

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Exchange Server allows

8.8
CVE-2026-62913

Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.

8.0
CVE-2026-62911

Authentication bypass by capture-replay in Microsoft Exchange Server allows an authorized attacker to elevate privileges

7.2
CVE-2026-62910

Improper control of resource identifiers ('resource injection') in Microsoft Exchange Server allows an authorized attack

7.8
CVE-2026-62909

Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.

7.0
CVE-2026-62908

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Backup Engine all

7.5
CVE-2026-62901

Unchecked input for loop condition in .NET allows an unauthorized attacker to deny service over a network.

7.5
CVE-2026-62898

Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.

7.0
CVE-2026-62897

Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-62894

Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

7.0
CVE-2026-62892

Use after free in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges loca

7.8
CVE-2026-62890

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

8.1
CVE-2026-62889

Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a ne

7.8
CVE-2026-62888

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-62886

Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.

7.8
CVE-2026-62885

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

7.8
CVE-2026-62880

Out-of-bounds read in Windows NTFS allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-62877

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

7.8
CVE-2026-62876

Out-of-bounds read in Windows Win32K allows an authorized attacker to elevate privileges locally.

8.8
CVE-2026-62872

Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.

7.8
CVE-2026-62871

Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.

8.8
CVE-2026-62869

Insufficient verification of data authenticity in Azure Entra ID allows an authorized attacker to perform spoofing over

7.8
CVE-2026-62832

Improper link resolution before file access ('link following') in Windows User Profile Service allows an authorized atta

8.8
CVE-2026-62827

Improper authentication in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a networ

8.8
CVE-2026-62824

Stack-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

8.8
CVE-2026-62823

Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over an adjacent netwo

8.8
CVE-2026-62822

Integer overflow or wraparound in Windows GDI+ allows an unauthorized attacker to execute code over a network.

8.1
CVE-2026-62820

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows DNS allows an una

8.1
CVE-2026-62819

Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to gain an unauthorized access

8.8
CVE-2026-62818

Use after free in Active Directory Certificate Services (AD CS) allows an authorized attacker to execute code over a net

8.8
CVE-2026-62817

Out-of-bounds write in Windows DNS allows an unauthorized attacker to execute code over an adjacent network.

8.8
CVE-2026-62816

Heap-based buffer overflow in Reliable Multicast Transport Driver (RMCAST) allows an unauthorized attacker to execute co

7.8
CVE-2026-62812

Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to e

7.8
CVE-2026-62811

Heap-based buffer overflow in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-62807

Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to e

7.8
CVE-2026-62803

Improper link resolution before file access ('link following') in Windows DHCP Server allows an authorized attacker to e

8.8
CVE-2026-62800

Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network.

7.8
CVE-2026-62799

Heap-based buffer overflow in Windows SMB Client allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-62797

Heap-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.

8.8
CVE-2026-62795

Use after free in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to execute code o

8.1
CVE-2026-62792

Stack-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to execute code over a network.

8.8
CVE-2026-62790

Heap-based buffer overflow in Windows SMB Server allows an authorized attacker to execute code over a network.

7.0
CVE-2026-62788

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

7.5
CVE-2026-62787

Use after free in Windows DNS allows an authorized attacker to execute code over a network.

8.8
CVE-2026-62785

Heap-based buffer overflow in Windows LDAP - Lightweight Directory Access Protocol allows an unauthorized attacker to ex

8.8
CVE-2026-62784

Heap-based buffer overflow in Microsoft Local Security Authority Server (lsasrv) allows an authorized attacker to execut

7.8
CVE-2026-62783

Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileg

8.1
CVE-2026-62781

Heap-based buffer overflow in RPC Runtime allows an unauthorized attacker to execute code over a network.

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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