Security Risk Severity

High Security Risks — Page 7

Published vulnerability pages grouped by high severity. Use this page to review risks that need similar prioritization.

872 published high risks

High severity

Showing 217–252 of 872 published risks.

Clear
highEPSS 0.003

CVE-2026-58631 windows admin center vulnerability

Improper authorization in Windows Admin Center allows an authorized attacker to execute code locally.

CVE-2026-58631windowsauthorization-bypass

Updated Jul 17, 2026

highEPSS 0.005

CVE-2026-58635 windows 10 1809 vulnerability

Improper neutralization of special elements used in a command ('command injection') in Windows Narrator Braille allows an authorized attacker to elevate privileges locally.

CVE-2026-58635windowsremote-code-execution

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-58636 pc manager vulnerability

Improper link resolution before file access ('link following') in Window PC Manager allows an authorized attacker to elevate privileges locally.

CVE-2026-58636path-traversal

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-58640 windows 10 1607 vulnerability

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

CVE-2026-58640windowsmemory-corruption

Updated Jul 17, 2026

highEPSS 0.005

CVE-2026-58647 power bi report server vulnerability

Improper neutralization of input during web page generation ('cross-site scripting') in Power BI allows an authorized attacker to perform spoofing over a network.

CVE-2026-58647xss

Updated Jul 17, 2026

high

CVE-2026-47290 365 apps vulnerability

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

CVE-2026-47290microsoftmemory-corruption

Updated Jul 17, 2026

high

CVE-2026-47642 365 apps vulnerability

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

CVE-2026-47642microsoftmemory-corruption

Updated Jul 17, 2026

high

CVE-2026-50301 365 apps vulnerability

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

CVE-2026-50301microsoftmemory-corruption

Updated Jul 17, 2026

high

CVE-2026-50304 windows 10 1607 vulnerability

Stack-based buffer overflow in Active Directory Federation Services allows an unauthorized attacker to deny service over a network.

CVE-2026-50304windowsmemory-corruption

Updated Jul 17, 2026

high

CVE-2026-50305 windows 11 24h2 vulnerability

Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.

CVE-2026-50305windowsmicrosoftmemory-corruptionrace-condition

Updated Jul 17, 2026

high

CVE-2026-50306 windows 10 1607 vulnerability

Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVE-2026-50306windowsinput-validationmemory-corruption

Updated Jul 17, 2026

highEPSS 0.002

CVE-2026-50307 windows 10 1809 vulnerability

Use after free in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

CVE-2026-50307windowsmemory-corruption

Updated Jul 17, 2026

highEPSS 0.002

CVE-2026-50309 windows 10 1607 vulnerability

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

CVE-2026-50309windowsmemory-corruption

Updated Jul 17, 2026

highEPSS 0.004

CVE-2026-50313 windows 10 1607 vulnerability

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

CVE-2026-50313windowsmemory-corruption

Updated Jul 17, 2026

highEPSS 0.004

CVE-2026-50314 365 apps vulnerability

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

CVE-2026-50314microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-50315 windows 11 24h2 vulnerability

Null pointer dereference in Windows Image Acquisition allows an authorized attacker to elevate privileges locally.

CVE-2026-50315windowsdenial-of-service

Updated Jul 17, 2026

highEPSS 0.002

CVE-2026-50317 windows 11 24h2 vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Operating Systems allows an authorized attacker to elevate privileges locally.

CVE-2026-50317windowsmemory-corruptionrace-condition

Updated Jul 17, 2026

highEPSS 0.002

CVE-2026-50321 windows 10 1607 vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows USB Driver allows an authorized attacker to elevate privileges locally.

CVE-2026-50321windowsmemory-corruptionrace-condition

Updated Jul 17, 2026

highEPSS 0.002

CVE-2026-50322 windows 11 24h2 vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an authorized attacker to elevate privileges locally.

CVE-2026-50322windowsmemory-corruptionrace-condition

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-50326 windows 10 21h2 vulnerability

Use after free in Windows Unified Consent System allows an authorized attacker to elevate privileges locally.

CVE-2026-50326windowsnetwork-securitymemory-corruption

Updated Jul 17, 2026

highEPSS 0.004

CVE-2026-50327 windows 11 24h2 vulnerability

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

CVE-2026-50327windowsmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-50467 365 apps vulnerability

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

CVE-2026-50467microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-50665 365 apps vulnerability

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.

CVE-2026-50665microsoftinformation-disclosure

Updated Jul 17, 2026

highEPSS 0.002

CVE-2026-50670 windows 10 1809 vulnerability

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

CVE-2026-50670linuxwindowsinput-validationinformation-disclosure

Updated Jul 17, 2026

highEPSS 0.002

CVE-2026-50673 windows 10 1607 vulnerability

Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.

CVE-2026-50673linuxwindowsdenial-of-service

Updated Jul 17, 2026

highEPSS 0.015

CVE-2026-50688 windows 10 1607 vulnerability

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

CVE-2026-50688linuxwindowsmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-55017 365 apps vulnerability

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

CVE-2026-55017microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-55018 365 apps vulnerability

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

CVE-2026-55018microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.004

CVE-2026-55022 365 apps vulnerability

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-55022microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-55032 365 apps vulnerability

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

CVE-2026-55032microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.005

CVE-2026-55033 365 apps vulnerability

Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-55033microsoftinput-validationmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-55036 365 apps vulnerability

Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55036microsoft

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-55037 365 apps vulnerability

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

CVE-2026-55037microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.004

CVE-2026-55038 365 apps vulnerability

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

CVE-2026-55038microsoftmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-55039 365 apps vulnerability

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

CVE-2026-55039microsoftinput-validationmemory-corruption

Updated Jul 17, 2026

highEPSS 0.003

CVE-2026-55041 365 apps vulnerability

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

CVE-2026-55041microsoftmemory-corruption

Updated Jul 17, 2026