Buffer overflow in Microsoft Office

CVE-2009-0563

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 Vie…

Vulnerability class: Buffer Overflow

EPSS: 0.631 (99.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2009-0563?
CVE-2009-0563 is a high-severity vulnerability in Microsoft Office, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2009-06-10.
How severe is CVE-2009-0563?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2009-0563 known to be exploited?
Yes. CVE-2009-0563 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.