CVE-2013-3893

high Microsoft ⚠️ CISA KEV — Exploited in the Wild
CVSS v3 Base Score
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
81.2%
Exploitation probability in 30 days
Top 1% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Published: September 18, 2013 (4621 days ago)
Last Modified: April 22, 2026
Vendor: Microsoft
Source: NVD

⚠️ CISA Known Exploited Vulnerability

Added to KEV: 2025-08-12
Remediation Due: 2025-09-02 (⚠ 255d overdue)

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.

CWE

CWE-416

Affected Products

microsoft internet explorer

References

🔗 blogs.technet.com 🔗 blogs.technet.com 🔗 jvn.jp 🔗 jvndb.jvn.jp 🔗 packetstormsecurity.com