Local SYSTEM escalation via kernel use-after-free
Published Aug 9, 2022 · Updated May 29, 2025
Windows Kernel in affected Microsoft Windows releases allows local users to elevate privileges to SYSTEM through a use-after-free. The kernel reuses freed memory during processing documented by Cisco, although the affected object and entry point remain undisclosed. Exploitation requires a local low-privileged account and can execute attacker-controlled code with SYSTEM privileges.
Summary
What happened
Windows Kernel in affected Microsoft Windows releases allows local users to elevate privileges to SYSTEM through a use-after-free. The kernel reuses freed memory during processing documented by Cisco, although the affected object and entry point remain undisclosed. Exploitation requires a local low-privileged account and can execute attacker-controlled code with SYSTEM privileges.
The record
- CVE
- CVE-2022-35761
- Published
- Aug 9, 2022
- Updated
- May 29, 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.
- 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.
- 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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