CVE-2022-34708Public exploit

Kernel memory disclosure via unchecked registry index

Published Aug 9, 2022 · Updated May 29, 2025

Information disclosure in Microsoft Windows allows local users to read kernel memory by loading a crafted registry hive. CmpValidateHiveSecurityDescriptors fails to validate the root _CM_KEY_SECURITY.Blink cell index before the kernel uses the attacker-controlled value for an invalid read or write. A low-privileged local account can load an application hive without special privileges; the documented impact is disclosure, not integrity loss or service interruption.

CVSS severity5.5
Medium
EPSS probability1.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Microsoft Windows allows local users to read kernel memory by loading a crafted registry hive. CmpValidateHiveSecurityDescriptors fails to validate the root _CM_KEY_SECURITY.Blink cell index before the kernel uses the attacker-controlled value for an invalid read or write. A low-privileged local account can load an application hive without special privileges; the documented impact is disclosure, not integrity loss or service interruption.

The record

CVE
CVE-2022-34708
Published
Aug 9, 2022
Updated
May 29, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-200
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 9, 2022CVE publishedPublication date reported by the CVE source.
  2. May 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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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 <10.0.10240.19387

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.19387
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.3287
Microsoft · Windows 7version=6.1.0 <6.1.7601.26065
Microsoft · Windows 10 Version 21H1version=10.0.0 <10.0.19043.1889
Microsoft · Windows 8.1version=6.3.0 <6.3.9600.20520
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.5291
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.856
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.23817
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.23817
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19044.1889
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.5291
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26065
Microsoft · Windows 10 Version 20H2version=10.0.0 <10.0.19042.1889
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26065
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.20520
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.3287
Microsoft · Windows 7 Service Pack 1version=6.1.0 <6.1.7601.26065
Microsoft · Windows Server version 20H2version=10.0.0 <10.0.19042.1889
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.5291
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.21616
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.887
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.3287; version=10.0.17763.0 <10.0.17763.3287
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.20520
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.21616

Published CVSS scores

5.5Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

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

Technologies

Your stack

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Your stack

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