CVE-2009-0565
CVE-2009-0565 is a critical-severity vulnerability in Microsoft Office with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 41% 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: 41% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Microsoft Office
- Published:
- Last modified:
Description
Buffer overflow in Microsoft Office Word 2000 SP3, 2002 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via a Word document with a malformed record that triggers memory corruption, aka "Word Buffer Overflow Vulnerability."
Frequently asked questions
- What is CVE-2009-0565?
- Buffer overflow in Microsoft Office Word 2000 SP3, 2002 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2 allows remote attackers to execute arbitrary code via a Word document with a malformed record that triggers memory corruption, aka "Word Buffer Overflow Vulnerability."
- How severe is CVE-2009-0565?
- CVE-2009-0565 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2009-0565 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 41% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-0565?
- CVE-2009-0565 primarily affects Microsoft Office. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2009-0565?
- 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-2009-0565 published?
- CVE-2009-0565 was published on 2009-06-10 and last updated on 2026-06-16.
References
- http://osvdb.org/54960
- http://securityreason.com/securityalert/8206
- http://www.securityfocus.com/bid/35190
- http://www.securitytracker.com/id?1022356
- http://www.us-cert.gov/cas/techalerts/TA09-160A.html
- http://www.vupen.com/english/advisories/2009/1546
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-027
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6334
Affected products (12)
- cpe:2.3:a:microsoft:office:2004:*:mac:*:*:*:*:*
- cpe:2.3:a:microsoft:office:2008:*:mac:*:*:*:*:*
- cpe:2.3:a:microsoft:office_compatibility_pack_for_word_excel_ppt_2007:*:sp1:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_compatibility_pack_for_word_excel_ppt_2007:*:sp2:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_word:2000:sp3:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_word:2002:sp3:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_word:2003:sp3:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_word:2007:sp1:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_word:2007:sp2:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_word_viewer:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:office_word_viewer:2003:sp3:*:*:*:*:*:*
- cpe:2.3:a:microsoft:open_xml_file_format_converter:*:*:mac:*:*:*:*:*
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