SYSTEM privilege escalation via out-of-bounds write
Published Nov 9, 2022 · Updated Aug 10, 2026
Elevation of privilege in Microsoft Windows CNG Key Isolation Service allows local users to gain SYSTEM privileges through an out-of-bounds write. Microsoft identifies the weakness class but has not published the affected function, buffer operation, or attacker-controlled input that triggers the write. Exploitation requires prior low-privileged local access and yields full SYSTEM control; CISA records active exploitation.
Summary
What happened
Elevation of privilege in Microsoft Windows CNG Key Isolation Service allows local users to gain SYSTEM privileges through an out-of-bounds write. Microsoft identifies the weakness class but has not published the affected function, buffer operation, or attacker-controlled input that triggers the write. Exploitation requires prior low-privileged local access and yields full SYSTEM control; CISA records active exploitation.
The record
- CVE
- CVE-2022-41125
- Published
- Nov 9, 2022
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-787, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 8, 2022Exploitation reportedCISA Known Exploited Vulnerabilities Catalog listing
- Nov 9, 2022CVE 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
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=10.0.10240.0 <10.0.10240.19567
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.
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.
Reported exploitation
- CISA Known Exploited Vulnerabilities Catalog listingknown exploited catalog
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