How severe is CVE-2009-1129?

CVE-2009-1129 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1129 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-2009-1129?

CVE-2009-1129 primarily affects Microsoft Office Powerpoint. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1129?

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-2009-1129 published?

CVE-2009-1129 was published on 2009-05-12 and last updated on 2026-06-16.

CVE-2009-1129

CVE-2009-1129 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 the PowerPoint 95 importer (PP7X32.DLL) in Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3 allow remote attackers to execute arbitrary code via an inconsistent record length in sound data in a file that uses a PowerPoint 95 (PPT95) native file format, aka "PP7 Memory Corruption Vulnerability," a different vulnerability than CVE-2009-1128.

Frequently asked questions

What is CVE-2009-1129?: Multiple stack-based buffer overflows in the PowerPoint 95 importer (PP7X32.DLL) in Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3 allow remote attackers to execute arbitrary code via an inconsistent record length in sound data in a file that uses a PowerPoint 95 (PPT95) native file format, aka "PP7 Memory Corruption Vulnerability," a different vulnerability than CVE-2009-1128.
How severe is CVE-2009-1129?: CVE-2009-1129 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1129 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-2009-1129?: CVE-2009-1129 primarily affects Microsoft Office Powerpoint. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1129?: 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-2009-1129 published?: CVE-2009-1129 was published on 2009-05-12 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:microsoft:office_powerpoint:2000:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_powerpoint:2002:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:office_powerpoint:2003: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-2009-1131 — Critical (CVSS 9.3): Multiple stack-based buffer overflows in Microsoft Office PowerPoint 2000 SP3 allow remote attackers to execute…
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-2009-1128 — 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…

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