{"cve_id":"CVE-2009-0556","published":"2009-04-03T18:30:00.610000+00:00","last_modified":"2026-06-16T23:05:17.900000+00:00","vuln_status":"Analyzed","description":"Microsoft Office PowerPoint 2000 SP3, 2002 SP3, and 2003 SP3, and PowerPoint in Microsoft Office 2004 for Mac, allows remote attackers to execute arbitrary code via a PowerPoint file with an OutlineTextRefAtom containing an an invalid index value that triggers memory corruption, as exploited in the wild in April 2009 by Exploit:Win32/Apptom.gen, aka \"Memory Corruption Vulnerability.\"","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","base_score":8.8,"base_severity":"HIGH","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"REQUIRED","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-94"],"in_kev":true,"kev_date_added":"2026-01-07","kev_ransomware":false,"epss_score":0.67312,"epss_percentile":0.99304,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":true,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T07:50:40.667264+00:00","first_seen":"2009-04-03T18:30:00.610000+00:00","kev_first_seen":"2026-01-07T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["microsoft"],"products":["office_powerpoint","powerpoint"],"affected":[{"vendor":"microsoft","product":"office_powerpoint","ranges":["2004"]},{"vendor":"microsoft","product":"powerpoint","ranges":["2000","2002","2003"]}]}