Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker who successfully exploited this vulnerability could gain specific limited SYSTEM privileges.
In what scenarios is my computer vulnerable?
For Windows 11 and Windows 10 the FAX service is not installed by default. For the vulnerability to be exploitable, the Windows Fax and Scan feature needs to be enabled, and the Fax service needs to be running. Systems that do not have the Fax service running are not vulnerable.
Hold the Windows key and press R on your keyboard. This will open the Run dialog., Type services.msc and press Enter to open the Services window., Scroll through the list and locate the Fax service.
If the Fax service is not listed, Windows Fax and Scan is not enabled and the system is not vulnerable., If the Fax service is listed but the status is not Running, then the system is not vulnerable at the time, but could be targeted if the service was started. The update should be installed as soon as possible or the Fax service should be removed if not needed.
Security updates
10.0.17763.3770 — https://support.microsoft.com/help/5021237
10.0.19043.2364 — https://support.microsoft.com/help/5021233
10.0.20348.1366 — https://support.microsoft.com/help/5021249
10.0.22000.1335 — https://support.microsoft.com/help/5021234
10.0.22621.993 — https://support.microsoft.com/help/5021255
10.0.10240.19624 — https://support.microsoft.com/help/5021243
10.0.14393.5582 — https://support.microsoft.com/help/5021235
6.1.7601.26266 — https://support.microsoft.com/help/5021291
6.1.7601.26266 — https://support.microsoft.com/help/5021288
6.3.9600.20721 — https://support.microsoft.com/help/5021294
6.3.9600.20721 — https://support.microsoft.com/help/5021296
6.0.6003.21815 — https://support.microsoft.com/help/5021289
6.0.6003.21815 — https://support.microsoft.com/help/5021293
6.2.9200.24018 — https://support.microsoft.com/help/5021285
6.2.9200.24018 — https://support.microsoft.com/help/5021303
Vulnerabilities 1
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High 7.8
Windows Fax Compose Form Elevation of Privilege Vulnerability
Windows Fax Compose Form Elevation of Privilege Vulnerability
Revision history
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#1
Information published.
References
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CVE-2022-41077 Windows Fax Compose Form Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41077
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss