# CVE-2013-3918: Microsoft Windows Out-of-Bounds Write Vulnerability

> CVE-2013-3918: Microsoft Windows Out-of-Bounds Write Vulnerability. CVSS 8.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2013-3918
Last updated: 2025-10-22T00:05:40Z

- Published: 2013-11-12 01:00 UTC · Updated: 2025-10-22 00:05 UTC · Assigner: microsoft
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 73.7%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-10-06, federal due date 2025-10-27, ransomware use: Unknown

## Description

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."

## CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Microsoft: Windows

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2013-3918)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2013-3918)
- [http://blogs.technet.com/b/msrc/archive/2013/11/11/activex-control-issue-being-addressed-in-update-tuesday.aspx](http://blogs.technet.com/b/msrc/archive/2013/11/11/activex-control-issue-being-addressed-in-update-tuesday.aspx)
- [https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-090](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-090)
- [https://isc.sans.edu/forums/diary/16985](https://isc.sans.edu/forums/diary/16985)
- [https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19089](https://oval.cisecurity.org/repository/search/definition/oval%253Aorg.mitre.oval%253Adef%253A19089)
- [http://www.darkreading.com/vulnerability/new-ie-vulnerability-found-in-the-wild-s/240163814/](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.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](http://www.us-cert.gov/ncas/alerts/TA13-317A)

---

_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


---
Canonical: https://rewindex.com/cve/CVE-2013-3918 · Markdown: https://rewindex.com/cve/CVE-2013-3918.md · JSON: https://rewindex.com/api/v1/cves/CVE-2013-3918 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:46:25.161Z