Local SYSTEM privilege escalation through undisclosed Win32k flaw
Published Aug 9, 2022 · Updated Jun 5, 2025
Win32k privilege escalation in affected Microsoft Windows releases allows local users to gain SYSTEM privileges through an undisclosed flaw. Microsoft has not published the flawed Win32k operation or attacker-controlled input that reaches it. A low-privileged local user must run code on the target; successful exploitation grants SYSTEM-level control.
Summary
What happened
Win32k privilege escalation in affected Microsoft Windows releases allows local users to gain SYSTEM privileges through an undisclosed flaw. Microsoft has not published the flawed Win32k operation or attacker-controlled input that reaches it. A low-privileged local user must run code on the target; successful exploitation grants SYSTEM-level control.
The record
- CVE
- CVE-2022-34699
- Published
- Aug 9, 2022
- Updated
- Jun 5, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-269, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 9, 2022CVE publishedPublication date reported by the CVE source.
- Jun 5, 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.
- Affected versionversion=10.0.17763.0 <10.0.17763.3287
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
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
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Your stack
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