OnlyFm252
Role: Windows Hyper-V

CVE-2024-21408 — Windows Hyper-V Denial of Service Vulnerability

Critical CVSS 5.5 EPSS 0.04507 2024-03 archive

Executive Summary

None

Overview

5.5
CVSS MEDIUM
Critical
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 0.04507 — 0.9028 percentile
NVD CVSS 5.5 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.8

EPSS Score

0.04507
probability of exploitation in the next 30 days
0.9028 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

17 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for x64-based Systems 5035858 (Security Update) Critical Denial of Service Yes
Windows 10 Version 1607 for x64-based Systems 5035855 (Security Update) Critical Denial of Service Yes
Windows 10 Version 1809 for x64-based Systems 5035849 (Security Update) Critical Denial of Service Yes
Windows 10 Version 21H2 for x64-based Systems 5035845 (Security Update) Critical Denial of Service Yes
Windows 10 Version 22H2 for ARM64-based Systems 5035845 (Security Update) Critical Denial of Service Yes
Windows 10 Version 22H2 for x64-based Systems 5035845 (Security Update) Critical Denial of Service Yes
Windows 11 version 21H2 for ARM64-based Systems 5035854 (Security Update) Critical Denial of Service Yes
Windows 11 version 21H2 for x64-based Systems 5035854 (Security Update) Critical Denial of Service Yes
Windows 11 Version 22H2 for ARM64-based Systems 5035853 (Security Update) Critical Denial of Service Yes
Windows 11 Version 22H2 for x64-based Systems 5035853 (Security Update) Critical Denial of Service Yes
Windows 11 Version 23H2 for ARM64-based Systems 5035853 (Security Update) Critical Denial of Service Yes
Windows 11 Version 23H2 for x64-based Systems 5035853 (Security Update) Critical Denial of Service Yes
Windows Server 2016 5035855 (Security Update) Critical Denial of Service Yes
Windows Server 2016 (Server Core installation) 5035855 (Security Update) Critical Denial of Service Yes
Windows Server 2019 5035849 (Security Update) Critical Denial of Service Yes
Windows Server 2019 (Server Core installation) 5035849 (Security Update) Critical Denial of Service Yes
Windows Server 2022 5035857 (Security Update) 5035959 (SecurityHotpatchUpdate) Critical Denial of Service 5034770 5034860 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/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) Critical Denial of Service 5034770 5034860 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/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) Critical Denial of Service Yes

Patches

7 patches
Article Type Restart
5035858 Security Update Yes
5035855 Security Update Yes
5035849 Security Update Yes
5035845 Security Update Yes
5035854 Security Update Yes
5035853 Security Update Yes
5035856 Security Update Yes

Known Exploits

Acknowledgments

HongZhenhao

On This Page