Microsoft Office PowerPoint Code Injection Vulnerability
Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3, and PowerPoint in Microsoft Office 2004 for Mac, allows remote attackers to execute arbitrary code via a PowerPoint file with an OutlineTextRefAtom containing an an invalid…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)07 Jan 2026
- Exploited in EUVD (ENISA)07 Jan 2026
- Used by ransomwareno
- EPSS above 10 %67.3%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3, and PowerPoint in Microsoft Office 2004 for Mac, allows remote attackers to execute arbitrary code via a PowerPoint file with an OutlineTextRefAtom containing an an invalid index value that triggers memory corruption, as exploited in the wild in April 2009 by Exploit:Win32/Apptom.gen, aka "Memory Corruption Vulnerability."
Affected products
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
-
EPSS peak: 67.3%
References
- cve.org · CVE-2009-0556
- ENISA EUVD · EUVD-2009-0560
- CISA KEV
- FIRST EPSS
- zerodayinitiative.com
- blogs.technet.com
- vupen.com
- osvdb.org
- docs.microsoft.com
- exchange.xforce.ibmcloud.com
- securityfocus.com
- vupen.com
- blogs.technet.com
- blogs.technet.com
- oval.cisecurity.org
- secunia.com
- securitytracker.com
- us-cert.gov
- microsoft.com
- kb.cert.org
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- CVE-2026-81963Microsoft Windows Link Following Vulnerability4.3 · Actively exploited
- CVE-2019-1068Microsoft SQL Server Remote Code Execution Vulnerability7.0 · Actively exploited
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