CVE-2022-44667

Code execution via DirectMusic DLS integer overflow

Published Dec 13, 2022 · Updated Jul 22, 2025

Windows Media in affected Microsoft Windows releases allows remote attackers to execute code after a user opens a crafted DLS file. DirectMusic's CInstrObj::Size truncates accumulated articulation sizes into a DWORD, so CDirectMusicPortDownload allocates an undersized buffer before CArticulation::Write copies connection data out of bounds. Exploitation requires user interaction with a malicious file and executes code in the affected user's context, allowing data access, modification, or service interruption.

CVSS severity7.8
High
EPSS probability0.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Windows Media in affected Microsoft Windows releases allows remote attackers to execute code after a user opens a crafted DLS file. DirectMusic's CInstrObj::Size truncates accumulated articulation sizes into a DWORD, so CDirectMusicPortDownload allocates an undersized buffer before CArticulation::Write copies connection data out of bounds. Exploitation requires user interaction with a malicious file and executes code in the affected user's context, allowing data access, modification, or service interruption.

The record

CVE
CVE-2022-44667
Published
Dec 13, 2022
Updated
Jul 22, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.10240.0 <10.0.10240.19624

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.19624
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.3770
Microsoft · Windows 7version=6.1.0 <6.1.7601.26266
Microsoft · Windows 10 Version 21H1version=10.0.0 <10.0.19043.2364
Microsoft · Windows 8.1version=6.3.0 <6.3.9600.20721
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.5582
Microsoft · Windows 11 version 21H2version=10.0.22000.0 <10.0.22000.1335
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.24018
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.24018
Microsoft · Windows 10 Version 21H2version=10.0.19044.0 <10.0.19044.2364
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.5582
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26266
Microsoft · Windows 10 Version 20H2version=10.0.0 <10.0.19042.2364
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26266
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.2364
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.20721
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.3770
Microsoft · Windows 7 Service Pack 1version=6.1.0 <6.1.7601.26266
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.993
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.5582
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.1366
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.3770; version=10.0.17763.0 <10.0.17763.3770
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.20721

Published CVSS scores

7.8Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1204.002Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo