Every CVESearch/Get API key

CVE-2021-1722

Windows Fax Service Remote Code Execution Vulnerability

8.1 High

Windows Fax Service Remote Code Execution Vulnerability

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.44%Down 7.1 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used8.1

Windows Fax Service Remote Code Execution Vulnerability

Windows Fax Service Remote Code Execution Vulnerability

Record
CVE-2021-1722
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Updated
2026-11-02
EUVDEUVD-2021-71888.1

Windows Fax Service Remote Code Execution Vulnerability

Record
EUVD-2021-7188
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Updated
2026-11-03
GitHub AdvisoriesGHSA-9pqr-g6m6-mhm58.1

Windows Fax Service Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24077.

Windows Fax Service Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24077.

Record
GHSA-9pqr-g6m6-mhm5
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
NVD8.1

Windows Fax Service Remote Code Execution Vulnerability

Record
CVE-2021-1722
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated
2026-11-02

Affected products

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History

History
RecordedChangedSources
facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-1722 is a high vulnerability (CVSS 8.1) in Microsoft Windows 10 Version 1507, published February 25, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.44%, the 84th percentile. No source names a fixed version.

References

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