{"cve":"CVE-2006-1540","nvd":{"published":"2006-03-30T11:02:00.000","modified":"2026-06-16T22:23:09.760","status":"Modified","description":"MSO.DLL in Microsoft Office 2000, Office XP (2002), and Office 2003 allows user-assisted attackers to cause a denial of service and execute arbitrary code via multiple attack vectors, as originally demonstrated using a crafted document record with a malformed string, as demonstrated by replacing a certain \"01 00 00 00\" byte sequence with an \"FF FF FF FF\" byte sequence, possibly causing an invalid array index, in (1) an Excel .xls document, which triggers an access violation in ole32.dll; (2) an Excel .xlw document, which triggers an access violation in excel.exe; (3) a Word document, which triggers an access violation in mso.dll in winword.exe; and (4) a PowerPoint document, which triggers an access violation in powerpnt.txt.  NOTE: after the initial disclosure, this issue was demonstrated by triggering an integer overflow using an inconsistent size for a Unicode \"Sheet Name\" string.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-94"],"references":["http://secunia.com/advisories/21012","http://securitytracker.com/id?1015855","http://www.kb.cert.org/vuls/id/609868","http://www.osvdb.org/27150","http://www.securityfocus.com/archive/1/439697/100/0/threaded"],"products":["microsoft:office"],"source":"nvd","synced_at":"2026-10-19T19:42:01.759833969+00:00"},"epss":{"cve":"CVE-2006-1540","score":0.28632,"percentile":0.98136,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}