CVE-2009-0556

UNKNOWNKnown Exploited

CISA Known Exploited Vulnerability

https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-017 ; https://nvd.nist.gov/vuln/detail/CVE-2009-0556

Remediation deadline: January 28, 2026

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.

Timeline

Published:January 7th, 2026 12:00 AM

Last modified:January 7th, 2026 12:00 AM

Added to KEV:January 7th, 2026

CVSS Scoring

No CVSS v3 score available

Affected Software

From NVD CPE configuration data

Vendors

Microsoft

Products

Office

Weaknesses (CWE)

CWE-94

References & Reports

Advisories, patches, and third-party reports

No references available.

Source: CISA KEV + NVD · Data may lag official sources by up to one minute