CVE-2009-1920

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Summary

CVECVE-2009-1920
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-09-08 22:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe JScript scripting engine 5.1, 5.6, 5.7, and 5.8 in JScript.dll in Microsoft Windows, as used in Internet Explorer, does not properly load decoded scripts into memory before execution, which allows remote attackers to execute arbitrary code via a crafted web site that triggers memory corruption, aka "JScript Remote Code Execution Vulnerability."

Risk And Classification

Primary CVSS: v2.0 9.3 from [email protected]

AV:N/AC:M/Au:N/C:C/I:C/A:C

Problem Types: CWE-94 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Microsoft Windows 2000 - sp4 All All
Operating System Microsoft Windows Server 2003 All sp2 All All
Operating System Microsoft Windows Server 2008 All All itanium All
Operating System Microsoft Windows Server 2008 - - x32 All
Operating System Microsoft Windows Server 2008 - - x64 All
Operating System Microsoft Windows Server 2008 - sp2 itanium All
Operating System Microsoft Windows Server 2008 - sp2 x64 All
Operating System Microsoft Windows Server 2008 - sp2 x86 All
Operating System Microsoft Windows Vista All All All All
Operating System Microsoft Windows Vista All sp1 All All
Operating System Microsoft Windows Vista All sp2 All All
Operating System Microsoft Windows Vista - - x64 All
Operating System Microsoft Windows Vista - sp1 All All
Operating System Microsoft Windows Vista - sp2 All All
Operating System Microsoft Windows Xp All sp2 professional_x64 All
Operating System Microsoft Windows Xp - sp2 All All
Operating System Microsoft Windows Xp - sp3 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
US-CERT Technical Cyber Security Alert TA09-251A -- Microsoft Updates for Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov US Government Resource
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Microsoft Security Bulletin MS09-045 - Critical | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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