How severe is CVE-2009-1128?

CVE-2009-1128 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1128?

CVE-2009-1128 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-2009-1128?

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-2009-1128 published?

CVE-2009-1128 was published on 2009-05-12 and last updated on 2026-06-16.

CVE-2009-1128

CVE-2009-1128 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 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 27% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Microsoft Office Powerpoint
Published: 2009-05-12
Last modified: 2026-06-16

Description

Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3 allows remote attackers to execute arbitrary code via crafted sound data in a file that uses a PowerPoint 95 native file format, leading to memory corruption, aka "PP7 Memory Corruption Vulnerability," a different vulnerability than CVE-2009-1129.

Frequently asked questions

What is CVE-2009-1128?: Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3 allows remote attackers to execute arbitrary code via crafted sound data in a file that uses a PowerPoint 95 native file format, leading to memory corruption, aka "PP7 Memory Corruption Vulnerability," a different vulnerability than CVE-2009-1129.
How severe is CVE-2009-1128?: CVE-2009-1128 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1128?: CVE-2009-1128 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-2009-1128?: 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-2009-1128 published?: CVE-2009-1128 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-2009-1129 — Critical (CVSS 9.3): Multiple stack-based buffer overflows in the PowerPoint 95 importer (PP7X32.DLL) in Microsoft Office PowerPoint 2000…
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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