Authenticated kernel-memory disclosure via undisclosed mechanism
Published Jul 14, 2021 · Updated Aug 10, 2026
Information disclosure in the Windows Kernel in Microsoft Windows allows remote authenticated users to read kernel memory over a network. Microsoft has not published the affected kernel routine or the operation that returns memory contents to the requester. Exploitation requires low privileges and high attack complexity; the published impact is limited to confidentiality, with no integrity or availability effect.
Summary
What happened
Information disclosure in the Windows Kernel in Microsoft Windows allows remote authenticated users to read kernel memory over a network. Microsoft has not published the affected kernel routine or the operation that returns memory contents to the requester. Exploitation requires low privileges and high attack complexity; the published impact is limited to confidentiality, with no integrity or availability effect.
The record
- CVE
- CVE-2021-34500
- Published
- Jul 14, 2021
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- Unavailable
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 14, 2021CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record 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.
- Affected versionversion=10.0.10240.0 <10.0.10240.19204
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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