ACTIVELY EXPLOITED
CVE-2009-0563: Microsoft Office Buffer Overflow Vulnerability
| Vendor | Microsoft |
|---|---|
| Product | Office |
| Actively exploited | Yes |
| Added to CISA KEV | 8 Jun 2022 |
| CISA federal deadline | 22 Jun 2022 |
| Weakness (CWE) | CWE-119 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
Microsoft Office contains a buffer overflow vulnerability that allows remote attackers to execute code via a Word document with a crafted tag containing an invalid length field.
SOURCES
Other Microsoft flaws
- patchtuesday:2026-11: Vulnerability in Microsoft
- CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.