{"id":"CVE-2009-0559","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-0559","generatedAt":"2026-10-27T19:39:29.714Z","title":"Stack-based buffer overflow in Excel in Microsoft Office 2000 SP3 and Office XP SP3 allows remote attackers to execute arbitrary code via a crafted Excel file with a malformed record object, aka \"String Copy Stack-Based Overrun Vulnerability.\"","description":"Stack-based buffer overflow in Excel in Microsoft Office 2000 SP3 and Office XP SP3 allows remote attackers to execute arbitrary code via a crafted Excel file with a malformed record object, aka \"String Copy Stack-Based Overrun Vulnerability.\"","published":"2009-06-10T18:30:00.000Z","lastModified":"2026-06-16T23:05:18.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"2.0","score":9.3,"severity":"HIGH","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C"},"cwe":["CWE-94"],"affected":["microsoft/office","microsoft/office compatibility pack for word excel ppt 2007","microsoft/office excel","microsoft/office excel viewer","microsoft/office sharepoint server","microsoft/open xml file format converter"],"epss":{"score":0.29444,"percentile":0.98169,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 29.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/35243","source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id?1022351","source":"secure@microsoft.com"},{"url":"http://www.us-cert.gov/cas/techalerts/TA09-160A.html","tags":["US Government Resource"],"source":"secure@microsoft.com"},{"url":"http://www.vupen.com/english/advisories/2009/1540","source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021","source":"secure@microsoft.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6273","source":"secure@microsoft.com"},{"url":"http://www.securityfocus.com/bid/35243","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1022351","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.us-cert.gov/cas/techalerts/TA09-160A.html","tags":["US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2009/1540","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-021","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6273","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-0559","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}