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CVE-2009-0556

8.8 · HIGHActively Exploited

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 Outlin…

Published Apr 3, 2009microsoftCWE-94EPSS 67.31%

Overview

CVE-2009-0556 is a high-severity vulnerability affecting microsoft office_powerpoint. It was published on April 3, 2009 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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."

Remediation

Check the references section for vendor advisories and patches from microsoft. Update office_powerpoint to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refblogs.technet.com/mmpc/archive/2009/04/02/new-0-day-exploits-using-powerpoint-files.aspxRefblogs.technet.com/msrc/archive/2009/04/02/microsoft-security-advisory-969136.aspxRefblogs.technet.com/srd/archive/2009/04/02/investigating-the-new-powerpoint-issue.aspxRefosvdb.org/53182Refsecunia.com/advisories/34572Refwww.kb.cert.org/vuls/id/627331Refwww.microsoft.com/technet/security/advisory/969136.mspxRefwww.securityfocus.com/archive/1/503453/100/0/threadedRefwww.securityfocus.com/bid/34351Refwww.securitytracker.com/id?1021967

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0556?

CVE-2009-0556 is a high-severity vulnerability affecting microsoft office_powerpoint. It was published on April 3, 2009 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2009-0556?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-0556?

Check the references section for vendor advisories and patches from microsoft. Update office_powerpoint to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-0556?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0556 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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