CVE-2009-0556 - Microsoft Office PowerPoint Code Injection Vulnerability
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.
- Severity
- critical
- Product
- Microsoft Office
- Published
- 2026-01-07
- EPSS
- 0.673
- CISA KEV
- Known exploited
- Ransomware
- Known campaign use
References and validation
- https://github.com/search?q=CVE-2009-0556&type=repositories
- https://nvd.nist.gov/vuln/detail/CVE-2009-0556
Entries are refreshed from CISA KEV and FIRST EPSS. Validate applicability before testing.