CVE-2009-0556
Microsoft Office PowerPoint Code Injection Vulnerability
IN CISA KEV
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.
- Vendor
- Microsoft
- Product
- Office
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-94
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2026-01-07
- Due date
- 2026-01-28
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS
67.3% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.