CVE-2023-21716
Microsoft Word Remote Code Execution Vulnerability
- Published
- Feb 14, 2023
- Updated
- Feb 28, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.7%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Microsoft Word Remote Code Execution Vulnerability
Sources
11- CVE-2023-21716-Analysis-ICT287Research
Technical analysis and reproduction of CVE-2023-21716, a critical heap-based buffer overflow in Microsoft Word's RTF parser, including root cause, impact, and defensive guidance.
Technical analysis and proof-of-concept exploit for CVE-2023-21716, a heap corruption vulnerability in Microsoft Word's RTF font table parser enabling remote code execution.
- CVE-2023-21716Exploit
CVE-2023-21716 - Microsoft Word RTF fonttbl Heap Corruption RCE exploit with reverse shell payload
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.