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."
Key facts
- CVSS score
- 8.8 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-787
- EPSS score
- 73.7% (99th percentile)
- In CISA KEV
- Yes, added October 6, 2025
- In EU EUVD
- Yes (EUVD-2013-3850)
- Published
- November 12, 2013
- NVD last modified
- June 16, 2026
- Status
- Analyzed
CISA Known Exploited Vulnerability
Microsoft Windows Out-of-Bounds Write Vulnerability
Added to the KEV catalog on October 6, 2025; federal remediation due October 27, 2025.
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-3850 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.
View on the EU Vulnerability DatabaseAffected products
- 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 2008
- microsoft / windows server 2008
- microsoft / windows server 2012
- microsoft / windows server 2012
- microsoft / windows vista
- microsoft / windows xp
- microsoft / windows xp
Certified products that may be affected
19 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Microsoft Windows 8 and Windows RT - Microsoft Corporation - Common Criteria CCEVS-VR-VID-10620-2015 - archived
- Windows 7 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1332 - historical
- Microsoft Windows 7 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1328 - historical
- Microsoft Windows Vista Kernel Mode Security Support Provider Interface (ksecdd.sys) - Microsoft Corporation - FIPS 140 1000 - historical
- Microsoft Windows Vista Cryptographic Primitives Library (bcrypt.dll) - Microsoft Corporation - FIPS 140 1001 - historical
See all 19 in the Security Certifications Explorer.
References
- http://blogs.technet.com/b/msrc/archive/2013/11/11/activex-control-issue-being-addressed-in-update-tuesday.aspx(Third Party Advisory)
- http://www.darkreading.com/vulnerability/new-ie-vulnerability-found-in-the-wild-s/240163814/(Broken Link)
- http://www.fireeye.com/blog/technical/2013/11/new-ie-zero-day-found-in-watering-hole-attack.html(Third Party Advisory)
- http://www.us-cert.gov/ncas/alerts/TA13-317A(Third Party Advisory, US Government Resource)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-090(Patch, Vendor Advisory)
- https://isc.sans.edu/forums/diary/16985(Third Party Advisory)
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19089(Broken Link, Third Party Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3918(US Government Resource)
- https://www.microsoft.com/en-us/msrc/blog/2013/11/technical-details-of-the-targeted-attack-using-ie-vulnerability-cve-2013-3918/(Vendor Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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