Description
Memory corruption vulnerability allowing remote code execution via malicious PowerPoint files. Still actively exploited in the wild.
Required Action
Fix: Install Patch MS09-017. Consider blocking legacy Office file formats.
References
Assess Your Risk
Use the CVSS Calculator to evaluate how this vulnerability affects your specific environment. Consider your network exposure, existing mitigations, and asset criticality.
Frequently Asked Questions
What is CVE-2009-0556?
CVE-2009-0556 (Microsoft Office PowerPoint Code Injection) is a vulnerability with a CVSS score of 9.3 (CRITICAL). This is an actively exploited zero-day vulnerability. Memory corruption vulnerability allowing remote code execution via malicious PowerPoint files. Still actively exploited in the wild.
How do I fix CVE-2009-0556?
Install Patch MS09-017. Consider blocking legacy Office file formats.
How severe is CVE-2009-0556?
CVE-2009-0556 has a CVSS score of 9.3, classified as CRITICAL. This vulnerability was previously in the CISA KEV catalog.
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