Important CVSS 7.3 EPSS 0.01017 2023-09 archive

Executive Summary

None

Overview

7.3
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
Exploitation Unlikely
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 0.01017 — 0.58775 percentile
NVD CVSS 7.3 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
None
USER INTERACTION
Required
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
Low
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.4

EPSS Score

0.01017
probability of exploitation in the next 30 days
0.58775 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

10 affected products
Product KB Article Severity Impact Restart Required
Microsoft 365 Apps for Enterprise for 32-bit Systems Click to Run (Security Update) Important Remote Code Execution No
Microsoft 365 Apps for Enterprise for 64-bit Systems Click to Run (Security Update) Important Remote Code Execution No
Microsoft Office 2019 for 32-bit editions Click to Run (Security Update) Important Remote Code Execution No
Microsoft Office 2019 for 64-bit editions Click to Run (Security Update) Important Remote Code Execution No
Microsoft Office 2019 for Mac Release Notes (Security Update) Important Remote Code Execution Maybe
Microsoft Office LTSC 2021 for 32-bit editions Click to Run (Security Update) Important Remote Code Execution No
Microsoft Office LTSC 2021 for 64-bit editions Click to Run (Security Update) Important Remote Code Execution No
Microsoft Office LTSC for Mac 2021 Release Notes (Security Update) Important Remote Code Execution Maybe
Microsoft SharePoint Enterprise Server 2016 5002494 (Security Update) 5002501 (Security Update) Important Remote Code Execution 5002453 5002398 Base: 7.3 Temporal: 6.4 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C 16.0.5413.1001 16.0.5413.1000 Maybe 5002494 5002501 Microsoft Word 2016 (32-bit edition) 5002497 (Security Update) Important Remote Code Execution Maybe
Microsoft Word 2016 (64-bit edition) 5002497 (Security Update) Important Remote Code Execution Maybe

Patches

3 patches
Article Type Restart
Click to Run Security Update No
Release Notes Security Update Maybe
5002497 Security Update Maybe

Known Exploits

Acknowledgments

Dhanesh Kizhakkinan with Mandiant