CVE-2021-33765
Windows Installer Spoofing Vulnerability
MEDIUM
6.2
CVSS Score
Published: July 14, 2021 at 05:53 PM UTC
Updated: August 10, 2026 at 04:17 PM UTC
17 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012
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Severity
MEDIUM6.2
Exploit prediction
EPSS 0.7%
Description
Windows Installer Spoofing Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
10.0.10240.0 ≤ v < 10.0.10240.1900310.0.10240.0
Affected range stops below 10.0.10240.19003, so it looks safe — our inference, not a vendor statement
10.0.14393.0 ≤ v < 10.0.14393.453010.0.14393.0
Affected range stops below 10.0.14393.4530, so it looks safe — our inference, not a vendor statement
10.0.0 ≤ v < 10.0.17763.206110.0.0 ≤ v < 10.0.19041.111010.0.17763.0 ≤ v < 10.0.17763.206110.0.010.0.17763.0
Affected range stops below 10.0.17763.2061, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.19041.1110, so it looks safe — our inference, not a vendor statement
10.0.0 ≤ v < 10.0.18363.167910.0.0
Affected range stops below 10.0.18363.1679, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.7601.25661, so it looks safe — our inference, not a vendor statement
6.3.0 ≤ v < 6.3.9600.200696.3.0
Affected range stops below 6.3.9600.20069, so it looks safe — our inference, not a vendor statement
All versions
10.0.0 ≤ v < 10.0.19041.111010.0.0
Affected range stops below 10.0.19041.1110, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.6003.21167, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.7601.25661, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
PatchVendor Advisory
Source: [email protected]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33765Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33765CVSS
6.2MEDIUMmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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