# CVE-2013-3918

The InformationCardSigninHelper Class ActiveX control in icardie.dll in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds write) via a crafted web page that is accessed by Internet Explorer, as exploited in the wild in November 2013, aka "InformationCardSigninHelper Vulnerability."

- Page: https://www.vulneraibility.com/cve/CVE-2013-3918
- CVSS: 8.8
- Known exploited: yes, in CISA KEV since 2025-10-06; CISA due date 2025-10-27
- EPSS: 73.69%
- Public exploit code: 1 on Exploit-DB · 1 Metasploit module (first 2013-11-27)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-10-04)
- Weakness: CWE-787
- Published: 2013-11-12

## Affected

- microsoft:windows_7
- microsoft:windows_8
- microsoft:windows_8.1
- microsoft:windows_rt
- microsoft:windows_rt_8.1
- microsoft:windows_server_2003
- microsoft:windows_server_2008
- microsoft:windows_server_2012
- microsoft:windows_vista
- microsoft:windows_xp

## References

- [advisory] http://www.us-cert.gov/ncas/alerts/TA13-317A
- [other] http://www.darkreading.com/vulnerability/new-ie-vulnerability-found-in-the-wild-s/240163814/
- [advisory] https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-090
- [other] http://www.fireeye.com/blog/technical/2013/11/new-ie-zero-day-found-in-watering-hole-attack.html
- [other] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19089
- [other] https://isc.sans.edu/forums/diary/16985
- [other] http://blogs.technet.com/b/msrc/archive/2013/11/11/activex-control-issue-being-addressed-in-update-tuesday.aspx
- [advisory] https://www.microsoft.com/en-us/msrc/blog/2013/11/technical-details-of-the-targeted-attack-using-ie-vulnerability-cve-2013-3918/
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3918

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.