Privilege escalation via ALPC use-after-free race
Published May 10, 2022 · Updated Jan 2, 2025
Use-after-free in Microsoft Windows ALPC allows local users to execute arbitrary code with elevated privileges through a race condition. Concurrent ALPC object handling can release an object while another execution path still references it, producing a use-after-free. A low-privileged local account and successful race timing are required; exploitation can yield system-level code execution.
Summary
What happened
Use-after-free in Microsoft Windows ALPC allows local users to execute arbitrary code with elevated privileges through a race condition. Concurrent ALPC object handling can release an object while another execution path still references it, producing a use-after-free. A low-privileged local account and successful race timing are required; exploitation can yield system-level code execution.
The record
- CVE
- CVE-2022-23279
- Published
- May 10, 2022
- Updated
- Jan 2, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 21H1
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 10, 2022CVE publishedPublication date reported by the CVE source.
- Jan 2, 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=10.0.0 <10.0.19043.1706
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
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