Exploit for Integer Overflow or Wraparound in Microsoft

githubexploit · 2023-03-24

Description

Microsoft Windows Integer Overflow CVE-2023-21716 exploit

Affected software

Microsoft Office= 2019

Microsoft Office Long Term Servicing Channel= 2021

Microsoft Office Online Server= 2016

Microsoft Office Web Apps= 2013

All known vulnerabilities by product

Office Word Sharepoint Foundation Sharepoint Server

CVSS 9.8 for CVE-2023-21716

9.8

HIGH SEVERITY

Version 3.1

VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector:NETWORK

Attack Complexity:LOW

Privileges Required:NONE

User Interaction:NONE

Scope:UNCHANGED

Confidentiality:HIGH

Integrity:HIGH

Availability:HIGH

Working code

87%confidence this exploit runs

Based on 2 file(s) in the source

EPSS Score

82.3%higher than 99.6% of all CVEs

Updated 2026-06-16

Exploit Details

Modified:2024-08-09 20:17

Last Seen:2025-08-31 21:34

Reporter:hv0l

Written in:Python

Last commit:2023-03-24

Tags

microsoftwindowsinteger overflowCVE-2023-21716exploit

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Exploit Code

README5 lines

## https://sploitus.com/exploit?id=7324C214-7FA1-5D54-9A0A-00934FA0C7B4
# CVE-2023-21716_exploit
test of exploit for CVE-2023-21716

source: https://www.deepwatch.com/labs/poc-exploit-released-for-critical-windows-word-vulnerability-cve-2023-21716/