Vulnerabilities CVE-2009-0556

CVE-2009-0556

Medium

Open

KEV

TLP:CLEAR

Microsoft Office PowerPoint Code Injection Vulnerability

NVD CVE.org

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Description

Microsoft — Office — 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.

Details

EPSS Score ⓘ: 67.54%

99.2th percentile
Confidence: 100%
CISA KEV
Date Added: Jan 7, 2026
Patch Due: Jan 28, 2026
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.

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