Microsoft Internet Explorer Resource Management Errors Vulnerability

HIGH 8.8EXPLOITED (CISA KEV)CVE-2013-3893 · Published 18/09/2013 · updated 16/06/2026

Microsoft Internet Explorer Resource Management Errors Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 12/08/2025. Patch affected systems as an emergency.

Package	Affected versions	Patched versions
internet explorer microsoft	`= 10= 11= 6= 7= 8= 9`	No fix yet

Description

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.

References

blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-it-workaround-available.aspx · Exploit
blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-two-vulnerabilities-under-limited-targeted-attacks.aspx · Vendor Advisory
jvn.jp/en/jp/JVN27443259/index.html · Third Party Advisory
jvndb.jvn.jp/ja/contents/2013/JVNDB-2013-000093.html · Third Party Advisory
packetstormsecurity.com/files/162585/Microsoft-Internet-Explorer-8-SetMouseCapture-Use-After-Free.html · Exploit
pastebin.com/raw.php · Exploit
technet.microsoft.com/security/advisory/2887505 · Vendor Advisory
securityfocus.com/bid/62453 · Broken Link
us-cert.gov/ncas/alerts/TA13-288A · US Government Resource
docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-080 · Vendor Advisory
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18665 · Broken Link
cisa.gov/known-exploited-vulnerabilities-catalog · US Government Resource
CISA KEV · CVE-2013-3893

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