CVE-2013-3918
Microsoft Windows contains an out-of-bounds write vulnerability in the InformationCardSigninHelper Class ActiveX control, icardie.dll. An attacker…
Browse: All 2013 CVEs · All vendors
- CVSS score
- 8.8 High
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- CISA KEV
- Yes — actively exploited (added 2025-10-06, remediation due 2025-10-27)
- Weakness (CWE)
- CWE-787
- Published
- 2013-11-12
- Last modified
- 2026-06-16
- NVD status
- Analyzed
Description
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.
Affected 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 2012
- microsoft windows vista
- microsoft windows xp
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Federal remediation deadline: 2025-10-27.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.
References
- http://blogs.technet.com/b/msrc/archive/2013/11/11/activex-control-issue-being-addressed-in-update-tuesday.aspx
- http://www.darkreading.com/vulnerability/new-ie-vulnerability-found-in-the-wild-s/240163814/
- http://www.fireeye.com/blog/technical/2013/11/new-ie-zero-day-found-in-watering-hole-attack.html
- http://www.us-cert.gov/ncas/alerts/TA13-317A
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-090
- https://isc.sans.edu/forums/diary/16985
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3918
- https://www.microsoft.com/en-us/msrc/blog/2013/11/technical-details-of-the-targeted-attack-using-ie-vulnerability-cve-2013-3918/
FAQ
Is CVE-2013-3918 actively exploited?
Yes. CISA added CVE-2013-3918 to its Known Exploited Vulnerabilities (KEV) catalog on 2025-10-06, with a federal remediation deadline of 2025-10-27. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2013-3918?
CVE-2013-3918 has a CVSS base score of 8.8 (High). Its vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Related vulnerabilities
- CVE-2008-4250 — Microsoft Windows
- CVE-2026-32202 — Microsoft Windows
- CVE-2025-60710 — Microsoft Windows
- CVE-2023-36424 — Microsoft Windows
- CVE-2008-0015 — Microsoft Windows
- CVE-2026-21513 — Microsoft Windows
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
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