CVE-2009-1131

CVE-2009-1131 is a critical-severity vulnerability in Microsoft Office Powerpoint with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 36% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Critical (CVSS 2.0 base score 9.3)
• EPSS exploit prediction: 36% (98th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Microsoft Office Powerpoint
• Published: 2009-05-12
• Last modified: 2026-06-16

Description

Multiple stack-based buffer overflows in Microsoft Office PowerPoint 2000 SP3 allow remote attackers to execute arbitrary code via a large amount of data associated with unspecified atoms in a PowerPoint file that triggers memory corruption, aka "Data Out of Bounds Vulnerability."

Frequently asked questions

What is CVE-2009-1131?

Multiple stack-based buffer overflows in Microsoft Office PowerPoint 2000 SP3 allow remote attackers to execute arbitrary code via a large amount of data associated with unspecified atoms in a PowerPoint file that triggers memory corruption, aka "Data Out of Bounds Vulnerability."

How severe is CVE-2009-1131?

CVE-2009-1131 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1131 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 36% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1131?

CVE-2009-1131 affects Microsoft Office Powerpoint. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1131?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-1131 published?

CVE-2009-1131 was published on 2009-05-12 and last updated on 2026-06-16.

References

• http://osvdb.org/54393
• http://secunia.com/advisories/32428
• http://secunia.com/secunia_research/2008-46/
• http://www.securityfocus.com/archive/1/503451
• http://www.securityfocus.com/bid/34841
• http://www.securitytracker.com/id?1022205
• http://www.us-cert.gov/cas/techalerts/TA09-132A.html
• http://www.vupen.com/english/advisories/2009/1290
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-017
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5351

Affected products (1)

• cpe:2.3:a:microsoft:office_powerpoint:2000:sp3:*:*:*:*:*:*

More vulnerabilities in Microsoft Office Powerpoint

• CVE-2009-0202 — Critical (CVSS 9.3): Array index error in FL21WIN.DLL in the PowerPoint Freelance Windows 2.1 Translator in Microsoft PowerPoint 2000 and…
• CVE-2009-1137 — Critical (CVSS 9.3): Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3 allows remote attackers to execute arbitrary code via…
• CVE-2009-1130 — Critical (CVSS 9.3): Heap-based buffer overflow in Microsoft Office PowerPoint 2002 SP3 and 2003 SP3, and PowerPoint in Microsoft Office…
• CVE-2009-1129 — Critical (CVSS 9.3): Multiple stack-based buffer overflows in the PowerPoint 95 importer (PP7X32.DLL) in Microsoft Office PowerPoint 2000…
• CVE-2009-1128 — Critical (CVSS 9.3): Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3 allows remote attackers to execute arbitrary code via…
• CVE-2009-0227 — Critical (CVSS 9.3): Stack-based buffer overflow in the PowerPoint 4.2 conversion filter (PP4X32.DLL) in Microsoft Office PowerPoint 2000…

All CVEs affecting Microsoft Office Powerpoint →

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