Important CVSS 8.8 EPSS 0.39231 2023-09 archive

Executive Summary

None

Overview

8.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Remote Code Execution
Released Sep 12 2023
Last Updated Sep 12 2023
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.39231 — 0.98414 percentile
NVD CVSS 8.8 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.7

EPSS Score

0.39231
probability of exploitation in the next 30 days
0.98414 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

4 affected products
Product KB Article Severity Impact Restart Required
Windows 11 version 21H2 for ARM64-based Systems 5030217 (Security Update) Important Remote Code Execution Yes
Windows 11 version 21H2 for x64-based Systems 5030217 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 22H2 for ARM64-based Systems 5030219 (Security Update) Important Remote Code Execution Yes
Windows 11 Version 22H2 for x64-based Systems 5030219 (Security Update) Important Remote Code Execution Yes

Patches

2 patches
Article Type Restart
5030217 Security Update Yes
5030219 Security Update Yes

Known Exploits

Acknowledgments

Emma Kirkpatrick ( @carrot_c4k3 ), Computest Sector 7