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Microsoft QUIC

CVE-2024-26190 — Microsoft QUIC Denial of Service Vulnerability

Important CVSS 7.5 EPSS 0.0299 2024-03 archive

Executive Summary

None

Overview

7.5
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Denial of Service
Released Mar 12 2024
Last Updated Mar 12 2024
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.0299 — 0.85572 percentile
NVD CVSS 7.5 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.5

EPSS Score

0.0299
probability of exploitation in the next 30 days
0.85572 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

15 affected products
Product KB Article Severity Impact Restart Required
.NET 7.0 5036451 (Monthly Rollup) Important Denial of Service Maybe
.NET 8.0 5036452 (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.4 Release Notes (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.6 Release Notes (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.8 Release Notes (Security Update) Important Denial of Service Maybe
Microsoft Visual Studio 2022 version 17.9 Release Notes (Security Update) Important Denial of Service Maybe
PowerShell 7.3 Release Notes (Security Update) Important Denial of Service Maybe
PowerShell 7.4 Release Notes (Security Update) Important Denial of Service Maybe
Windows 11 version 21H2 for ARM64-based Systems 5035854 (Security Update) Important Denial of Service Yes
Windows 11 version 21H2 for x64-based Systems 5035854 (Security Update) Important Denial of Service Yes
Windows 11 Version 22H2 for ARM64-based Systems 5035853 (Security Update) Important Denial of Service Yes
Windows 11 Version 22H2 for x64-based Systems 5035853 (Security Update) Important Denial of Service Yes
Windows 11 Version 23H2 for ARM64-based Systems 5035853 (Security Update) Important Denial of Service Yes
Windows 11 Version 23H2 for x64-based Systems 5035853 (Security Update) Important Denial of Service Yes
Windows Server 2022 5035857 (Security Update) 5035959 (SecurityHotpatchUpdate) Important Denial of Service 5034770 5034860 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 10.0.20348.2340 10.0.20348.2333 Yes None Windows Server 2022 (Server Core installation) 5035857 (Security Update) 5035959 (SecurityHotpatchUpdate) Important Denial of Service 5034770 5034860 Base: 7.5 Temporal: 6.5 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 10.0.20348.2340 10.0.20348.2333 Yes None Windows Server 2022, 23H2 Edition (Server Core installation) 5035856 (Security Update) Important Denial of Service Yes

Patches

6 patches
Article Type Restart
5036451 Monthly Rollup Maybe
5036452 Security Update Maybe
Release Notes Security Update Maybe
5035854 Security Update Yes
5035853 Security Update Yes
5035856 Security Update Yes

Known Exploits

Acknowledgments

None

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