CVE-2013-3893
Microsoft Internet Explorer Resource Management Errors Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
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.
CISA notes
https://learn.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-080 ; https://nvd.nist.gov/vuln/detail/CVE-2013-3893
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.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation Context
as of October 14, 2026- CISA added CVE-2013-3893 to the KEV catalog 4,346 days after its CVE record was published. The median for entries added in 2025 is 26 days.
- It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 39 added in 2025.
- Its current EPSS score (87.5%) is higher than that of 70% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| - | - | n/a |
References
11 Links- http://blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-two-vulnerabilities-under-limited-targeted-attacks.aspx
- http://technet.microsoft.com/security/advisory/2887505
- http://pastebin.com/raw.php?i=Hx1L5gu6
- http://blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-it-workaround-available.aspx
- http://packetstormsecurity.com/files/162585/Microsoft-Internet-Explorer-8-SetMouseCapture-Use-After-Free.html
Record Details
More from Microsoft
Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerability
Microsoft Internet Explorer Memory Corruption Vulnerability
Microsoft Internet Explorer Use-After-Free Vulnerability
Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability
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