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CVE-2009-0556

Microsoft Office PowerPoint Code Injection Vulnerability

Description

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.

Recommended 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.

CISA remediation due date for U.S. federal agencies: 28 Jan 2026.

Collected automatically from public sources. Verify affected versions and fixes in the vendor's notice before acting.