Critical CVSS 8.8 EPSS 0.02276 2021-03 archive

Executive Summary

None

Overview

8.8
CVSS HIGH
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Mar 9 2021
Last Updated Mar 9 2021
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.02276 — 0.80831 percentile

CVSS Vector

ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
Temporal Score: 7.7

EPSS Score

0.02276
probability of exploitation in the next 30 days
0.80831 percentile - updated 2026-06-20
View on FIRST.org

Affected Products

40 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 4601331 (Security Update) Critical Remote Code Execution Yes
Windows 10 for x64-based Systems 4601331 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for 32-bit Systems 4601318 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1607 for x64-based Systems 4601318 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for 32-bit Systems 4601354 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for ARM64-based Systems 4601354 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1803 for x64-based Systems 4601354 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for 32-bit Systems 4601345 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for ARM64-based Systems 4601345 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1809 for x64-based Systems 4601345 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1909 for 32-bit Systems 4601315 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1909 for ARM64-based Systems 4601315 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 1909 for x64-based Systems 4601315 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 2004 for 32-bit Systems 4601319 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 2004 for ARM64-based Systems 4601319 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 2004 for x64-based Systems 4601319 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 20H2 for 32-bit Systems 4601319 (Security Update) Critical Remote Code Execution Yes
Windows 10 Version 20H2 for ARM64-based Systems 4601319 (Security Update) Critical Remote Code Execution Yes
Windows 7 for 32-bit Systems Service Pack 1 4601347 (Monthly Rollup) 4601363 (Security Only) Critical Remote Code Execution Yes
Windows 7 for x64-based Systems Service Pack 1 4601347 (Monthly Rollup) 4601363 (Security Only) Critical Remote Code Execution Yes
Windows 8.1 for 32-bit systems 4601384 (Monthly Rollup) 4601349 (Security Only) Critical Remote Code Execution Yes
Windows 8.1 for x64-based systems 4601384 (Monthly Rollup) 4601349 (Security Only) Critical Remote Code Execution Yes
Windows RT 8.1 4601384 (Monthly Rollup) Critical Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 4601360 (Monthly Rollup) 4601366 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 4601360 (Monthly Rollup) 4601366 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 for x64-based Systems Service Pack 2 4601360 (Monthly Rollup) 4601366 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 4601360 (Monthly Rollup) 4601366 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 4601347 (Monthly Rollup) 4601363 (Security Only) Critical Remote Code Execution Yes
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4601347 (Monthly Rollup) 4601363 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 4601348 (Monthly Rollup) 4601357 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 (Server Core installation) 4601348 (Monthly Rollup) 4601357 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 R2 4601384 (Monthly Rollup) 4601349 (Security Only) Critical Remote Code Execution Yes
Windows Server 2012 R2 (Server Core installation) 4601384 (Monthly Rollup) 4601349 (Security Only) Critical Remote Code Execution Yes
Windows Server 2016 4601318 (Security Update) Critical Remote Code Execution Yes
Windows Server 2016 (Server Core installation) 4601318 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 4601345 (Security Update) Critical Remote Code Execution Yes
Windows Server 2019 (Server Core installation) 4601345 (Security Update) Critical Remote Code Execution Yes
Windows Server, version 1909 (Server Core installation) 4601315 (Security Update) Critical Remote Code Execution Yes
Windows Server, version 2004 (Server Core installation) 4601319 (Security Update) Critical Remote Code Execution Yes
Windows Server, version 20H2 (Server Core Installation) 4601319 (Security Update) Critical Remote Code Execution Yes

Patches

11 patches
Article Type Restart
4601331 Security Update Yes
4601318 Security Update Yes
4601354 Security Update Yes
4601345 Security Update Yes
4601315 Security Update Yes
4601319 Security Update Yes
4601347 (Monthly Rollup) 4601363 Monthly Rollup Yes
4601384 (Monthly Rollup) 4601349 Monthly Rollup Yes
4601384 Monthly Rollup Yes
4601360 (Monthly Rollup) 4601366 Monthly Rollup Yes
4601348 (Monthly Rollup) 4601357 Monthly Rollup Yes

Known Exploits

Acknowledgments

@lxf02942370 ) of Sangfor & Zhiniang Peng (@edwardzpeng)