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CVE-2009-0563: Microsoft Office Buffer Overflow Vulnerability

criticalknown exploitedCVE-2009-0563
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Microsoftproduct: OfficeRemote code execution
What
A buffer overflow vulnerability allows remote attackers to execute code via a crafted Word document.
Who is affected
Users of Microsoft Office.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Install the latest security updates from Microsoft.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-06-08
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2009-0563

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2009-0563coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Office Buffer

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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