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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 68/1469
7.8
CVE-2026-70311

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

7.0
CVE-2026-70307

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges loca

8.4
CVE-2026-70130

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

8.8
CVE-2026-69320

Improper neutralization of special elements used in an os command ('os command injection') in Visual Studio Code allows

8.2
CVE-2026-69306

Not failing securely ('failing open') in Visual Studio Code allows an unauthorized attacker to bypass a security feature

7.8
CVE-2026-69278

Incorrect authorization in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.

7.3
CVE-2026-68821

Improper privilege management in Windows Package Manager allows an authorized attacker to elevate privileges locally.

7.0
CVE-2026-68820 KEV

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges loca

7.8
CVE-2026-68817

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

7.8
CVE-2026-68816

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

7.8
CVE-2026-68815

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

7.8
CVE-2026-68814

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

7.8
CVE-2026-68812

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

7.8
CVE-2026-68811

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker

7.8
CVE-2026-68810

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

7.8
CVE-2026-68807

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

7.8
CVE-2026-68806

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

7.8
CVE-2026-68805

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

7.8
CVE-2026-68804

Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

7.8
CVE-2026-68803

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker

7.8
CVE-2026-68801

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

7.8
CVE-2026-68800

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

7.8
CVE-2026-68798

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

7.8
CVE-2026-68796

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

7.8
CVE-2026-68795

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

7.8
CVE-2026-68794

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

7.8
CVE-2026-68793

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

7.8
CVE-2026-68792

Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an author

8.8
CVE-2026-66808

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

7.8
CVE-2026-66807

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

8.8
CVE-2026-66805

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

7.8
CVE-2026-66804

Improper access control in Windows Cross Device Service allows an authorized attacker to elevate privileges locally.

8.1
CVE-2026-66802

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Device Health Att

7.8
CVE-2026-66799

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

8.8
CVE-2026-65815

Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code

7.8
CVE-2026-65814

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

8.8
CVE-2026-65811

Improper input validation in Power BI allows an authorized attacker to execute code over a network.

7.8
CVE-2026-65810

Relative path traversal in .NET Framework allows an unauthorized attacker to elevate privileges locally.

8.8
CVE-2026-65807

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker

8.1
CVE-2026-65796

Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code over a networ

7.8
CVE-2026-65790

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

8.1
CVE-2026-65789

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

7.0
CVE-2026-65788

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

7.8
CVE-2026-65787

Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

7.8
CVE-2026-65786

Heap-based buffer overflow in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

7.0
CVE-2026-65783

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

7.0
CVE-2026-65782

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

7.0
CVE-2026-65781

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

7.0
CVE-2026-65780

Double free in Windows Autopilot allows an authorized attacker to elevate privileges locally.

7.0
CVE-2026-65779

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

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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