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CVE-2009-0563

Out-of-bounds Write — is CVE-2009-0563real, exploitable, or a false positive? Here's the community ground truth.

High · CVSS 7.8EPSS 63.1%CISA KEVCWE-787 · Out-of-bounds Write

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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; 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."

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Community ground truth

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2 verdicts
Not a real issue

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Community real-world severity: High (High 2) — CVSS base score 7.8

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Diego RamírezCurated

    Microsoft Office Buffer Overflow Vulnerability — Microsoft Office contains a buffer overflow vulnerability that allows remote attackers to execute code via a Word document with a crafted tag containing an invalid length field. Listed in the CISA KEV catalog (added 2022-06-08) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~63%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Marco FerriCurated

    Required action for Microsoft Office: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-06-22. After patching, verify the vulnerable path is no longer reachable before closing the finding.

Same weaknessCWE-787 · Out-of-bounds Write.