Actively exploited in the wild
Microsoft Internet Explorer Information Disclosure Vulnerability
Microsoft - Internet Explorer · Listed in the CISA KEV since 2022-05-25. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2013-7331
MediumCVSS 6.5KEVSummary
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.
Risk Assessment
An attacker can obtain information about the internal network structure, facilitating further targeted attacks. This may lead to a breach of confidentiality regarding infrastructure information.
Recommendation
Apply Microsoft security updates for Windows. It is also recommended to restrict the execution of the Microsoft.XMLDOM ActiveX control in the browser.
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Original NVD description (English source)
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.

