Exploited vulnerability

CVE-2013-3918

TLP:CLEAR

Microsoft Windows Out-of-Bounds Write Vulnerability

Microsoft Windows contains an out-of-bounds write vulnerability in the InformationCardSigninHelper Class ActiveX control, icardie.dll. An attacker could exploit the vulnerability by constructing a specially crafted webpage. When a user views the webpage, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

Facts

Vendor: Microsoft
Product: Windows
CVSS: 8.8
EPSS (probability of exploitation within 30 days): 73.7 %
On CISA's Known Exploited Vulnerabilities list since: 6 October 2025
First known exploitation: 6 October 2025
CISA's deadline for US federal agencies: 27 October 2025
First seen by Risk Letters: 6 October 2025

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD