Local privilege escalation through undisclosed Fax Service flaw
Published Jul 12, 2022 · Updated Jul 8, 2025
Elevation of privilege in Microsoft Windows Fax Service allows local users with low privileges to gain higher privileges on affected Windows systems. Microsoft has not published the vulnerable code path or the operation that mishandles attacker-controlled input. Exploitation requires local low-privileged access and can compromise confidentiality, integrity, and availability at the higher privilege level.
Summary
What happened
Elevation of privilege in Microsoft Windows Fax Service allows local users with low privileges to gain higher privileges on affected Windows systems. Microsoft has not published the vulnerable code path or the operation that mishandles attacker-controlled input. Exploitation requires local low-privileged access and can compromise confidentiality, integrity, and availability at the higher privilege level.
The record
- CVE
- CVE-2022-22050
- Published
- Jul 12, 2022
- Updated
- Jul 8, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 12, 2022CVE publishedPublication date reported by the CVE source.
- Jul 8, 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=10.0.10240.0 <10.0.10240.19360
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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