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CVE-2013-7331

Medium 6.5 Exploited in the wild (KEV)

Confirmed active exploitation — CISA KEV catalog

Name
Microsoft Internet Explorer Information Disclosure Vulnerability
Added to catalog
Remediation due date (US federal)
Required action
Apply updates per vendor instructions.

Description

The Microsoft.XMLDOM ActiveX control in Microsoft Windows 8.1 and earlier allows remote attackers to determine the existence of local pathnames, UNC share pathnames, intranet hostnames, and intranet IP addresses by examining error codes, as demonstrated by a res:// URL, and exploited in the wild in February 2014.

Metrics

CVSS 3.1
6.5 (MEDIUM) Score source: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
EPSS — exploit probability
50% (percentile: 99) as of 1 November 2026
CWE
CWE-209

Affected products

microsoft: internet explorer; microsoft: windows server 2003; microsoft: windows server 2008; microsoft: windows vista; microsoft: windows 7; microsoft: windows 8; microsoft: windows rt; microsoft: windows server 2012; microsoft: windows 8.1; microsoft: windows rt 8.1

References