Windows Authenticode
CVE-2021-33782 — Windows Authenticode Spoofing Vulnerability
Executive Summary
None
Overview
5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
High
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.8
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
53 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 Version 1809 for 32-bit Systems | 5004244 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1809 for x64-based Systems | 5004244 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 5004244 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2019 | 5004244 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2019 (Server Core installation) | 5004244 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1909 for 32-bit Systems | 5004245 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1909 for x64-based Systems | 5004245 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1909 for ARM64-based Systems | 5004245 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H1 for x64-based Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H1 for ARM64-based Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H1 for 32-bit Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 2004 for 32-bit Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 2004 for ARM64-based Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 2004 for x64-based Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows Server, version 2004 (Server Core installation) | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 20H2 for 32-bit Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 20H2 for ARM64-based Systems | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows Server, version 20H2 (Server Core Installation) | 5004237 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 for 32-bit Systems | 5004249 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 for x64-based Systems | 5004249 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 5004238 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1607 for x64-based Systems | 5004238 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2016 | 5004238 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2016 (Server Core installation) | 5004238 (Security Update) |
Important | Spoofing | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 | 5004289 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows 7 for x64-based Systems Service Pack 1 | 5004289 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | 5004289 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | 5004289 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 | 5004307 (Security Only) |
Important | Spoofing | Yes |
| Windows 7 for x64-based Systems Service Pack 1 | 5004307 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 | 5004307 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | 5004307 (Security Only) |
Important | Spoofing | Yes |
| Windows 8.1 for 32-bit systems | 5004298 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows 8.1 for x64-based systems | 5004298 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2012 R2 | 5004298 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2012 R2 (Server Core installation) | 5004298 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows 8.1 for 32-bit systems | 5004285 (Security Only) |
Important | Spoofing | Yes |
| Windows 8.1 for x64-based systems | 5004285 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2012 R2 | 5004285 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2012 R2 (Server Core installation) | 5004285 (Security Only) |
Important | Spoofing | Yes |
| Windows RT 8.1 | 5004298 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | 5004305 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | 5004305 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 | 5004305 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | 5004305 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | 5004299 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | 5004299 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 | 5004299 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | 5004299 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2012 | 5004294 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2012 (Server Core installation) | 5004294 (Monthly Rollup) |
Important | Spoofing | Yes |
| Windows Server 2012 | 5004302 (Security Only) |
Important | Spoofing | Yes |
| Windows Server 2012 (Server Core installation) | 5004302 (Security Only) |
Important | Spoofing | Yes |
Patches
13 patches
| Article | Type | Restart |
|---|---|---|
5004244 |
Security Update | Yes |
5004245 |
Security Update | Yes |
5004237 |
Security Update | Yes |
5004249 |
Security Update | Yes |
5004238 |
Security Update | Yes |
5004289 |
Monthly Rollup | Yes |
5004307 |
Security Only | Yes |
5004298 |
Monthly Rollup | Yes |
5004285 |
Security Only | Yes |
5004305 |
Monthly Rollup | Yes |
5004299 |
Security Only | Yes |
5004294 |
Monthly Rollup | Yes |
5004302 |
Security Only | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Microsoft has not published researcher acknowledgments for this CVE, or they are not yet reflected in our data source. Check the MSRC advisory directly for the most current credit information.
References
On This Page