Raw vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2009-0563 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Microsoft Office. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 0.8% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
The vulnerability CVE-2009-0563 is a stack-based buffer overflow present in Microsoft Office Word 2002 SP3, 2003 SP3, and 2007 SP1/SP2, Microsoft Office for Mac 2004 and 2008, Open XML File Format Converter for Mac, Microsoft Office Word Viewer 2003 SP3 and Word Viewer, and the Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2. It stems from improper handling of a crafted tag containing an invalid length field within a Word document and is tracked as CWE-787 with a CVSS 3.1 score of 7.8.
An attacker can exploit the flaw by sending a specially crafted Word document to a victim, who triggers arbitrary code execution simply by opening the file in an affected application. The attack requires no authentication and succeeds under local access conditions when user interaction occurs.
References including US-CERT TA09-160A and associated vendor bulletins direct administrators to apply the patches released by Microsoft for the listed products and to exercise caution when handling untrusted Word documents from external sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2009-0567
Vulnerability Data
Stack-based buffer overflow in Microsoft Office Word 2002 SP3, 2003 SP3, and 2007 SP1 and SP2; Microsoft Office for Mac 2004 and 2008; Open XML File Format Converter for Mac; Microsoft Office Word Viewer 2003 SP3; Microsoft Office Word Viewer;…
more
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 crafted tag containing an invalid length field, aka "Word Buffer Overflow Vulnerability."
- CWE(s)
- KEV Date Added
- 08 June 2022
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.
Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.
Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.