CVE-2013-3893

Use-after-free vulnerability in the SetMouseCapture implementation in mshtml.dll in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code via crafted JavaScript strings, as demonstrated by use of an ms-help: URL that triggers loading of hxds.dll.

Score

CVSS 3.1 8.8 High

Status

Analyzed - secure@microsoft.com

Published

2013-09-18

Last modified

2025-10-22

Known exploited (CISA KEV)

since 2025-08-12, action due 2025-09-02: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

CWE-416

Affected products

• Internet Explorer (Microsoft)

References

• http://blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-it-workaround-available.aspx
• http://blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-two-vulnerabilities-under-limited-targeted-attacks…
• http://jvn.jp/en/jp/JVN27443259/index.html
• http://jvndb.jvn.jp/ja/contents/2013/JVNDB-2013-000093.html
• http://packetstormsecurity.com/files/162585/Microsoft-Internet-Explorer-8-SetMouseCapture-Use-After-Free.html
• http://pastebin.com/raw.php?i=Hx1L5gu6
• http://technet.microsoft.com/security/advisory/2887505
• http://www.securityfocus.com/bid/62453
• http://www.us-cert.gov/ncas/alerts/TA13-288A
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-080
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18665
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3893