CVE-2009-0556 — Microsoft Office PowerPoint Code Injection Vulnerability
2026-01-07 • CISA Known Exploited Vulnerability
[event] Microsoft Office PowerPoint contains a code injection vulnerability that allows remote attackers to execute arbitrary code via a PowerPoint file with an OutlineTextRefAtom containing an invalid index value that triggers memory corruption.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Microsoft |
| Product | Office |
| CWE | CWE-94 |
| CVE ID | CVE-2009-0556 |
| Date Added | 2026-01-07 |
| Due Date | 2026-01-28 |
| Ransomware Campaign | Unknown |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2026-01-28