VULNERABILITY INTELLIGENCE

CVE-2009-1920

CVSS score9.3 HIGH
EPSS probability21.51%
CISA KEVNot currently listed
Published2009-09-08
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:C/I:C/A:C

Description

The 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."

Weakness classification

  • CWE-94: Improper Control of Generation of Code ('Code Injection')

Primary references