CVE-2024-38264 — Microsoft Virtual Hard Disk (VHDX) Denial of Service Vulnerability

Executive Summary

None

Overview

5.9

CVSS MEDIUM

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Denial of Service

Weakness CWE-591: Sensitive Data Storage in Improperly Locked Memory

Released Nov 12 2024

Last Updated Nov 12 2024

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.01299 — 0.6745 percentile

NVD CVSS 5.9 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

ATTACK VECTOR

Network

ATTACK COMPLEXITY

High

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: 5.2

EPSS Score

0.01299

probability of exploitation in the next 30 days

0.6745 percentile - updated 2026-07-25

View on FIRST.org

Affected Products

5 affected products

Product	KB Article	Severity	Impact	Restart Required
Windows 11 Version 22H2 for ARM64-based Systems	`5046633 (Security Update)`	Important	Denial of Service	Yes
Windows 11 Version 22H2 for x64-based Systems	`5046633 (Security Update)`	Important	Denial of Service	Yes
Windows 11 Version 23H2 for ARM64-based Systems	`5046633 (Security Update)`	Important	Denial of Service	Yes
Windows 11 Version 23H2 for x64-based Systems	`5046633 (Security Update)`	Important	Denial of Service	Yes
Windows 11 Version 24H2 for ARM64-based Systems 5046696 (SecurityHotpatchUpdate) 5046617 (Security Update) Important Denial of Service 5044284 Base: 5.9 Temporal: 5.2 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 10.0.26100.2240 10.0.26100.2314 Yes None Windows 11 Version 24H2 for x64-based Systems 5046696 (SecurityHotpatchUpdate) 5046617 (Security Update) Important Denial of Service 5044284 Base: 5.9 Temporal: 5.2 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C 10.0.26100.2240 10.0.26100.2314 Yes None Windows Server 2022, 23H2 Edition (Server Core installation)	`5046618 (Security Update)`	Important	Denial of Service	Yes

Patches

2 patches

Article	Type	Restart
`5046633`	Security Update	Yes
`5046618`	Security Update	Yes

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

None

References

MSRC Advisory MITRE NVD