CVE-2013-3893
Confirmed PUBLISHEDUse-after-free vulnerability in the SetMouseCapture implementation in mshtml.dll in Microsoft Internet Explorer 6 through 11 allows remote...
1 day faster than CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Sep 18, 2013
- Exploitation Reported
- Jun 01, 2026
- CVSS
- 8.8 High
- EPSS
- 85.9%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
n/a
|
n/a |
Affected |
CVE References
- MS13-080 docs.microsoft.com · Vendor Advisory https://docs.microsoft.com/en-us/security-updates/securitybulletins/2...
- JVNDB-2013-000093 jvndb.jvn.jp · Third-Party Advisory http://jvndb.jvn.jp/ja/contents/2013/JVNDB-2013-000093.html
- JVN#27443259 jvn.jp · Third-Party Advisory http://jvn.jp/en/jp/JVN27443259/index.html
- TA13-288A us-cert.gov · Third-Party Advisory http://www.us-cert.gov/ncas/alerts/TA13-288A
- 62453 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/62453
Show 6 more references
- oval:org.mitre.oval:def:18665 oval.cisecurity.org · VDB Entry https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.m...
- blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-... blogs.technet.com · CVE Record http://blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-...
- technet.microsoft.com/security/advisory/2887505 technet.microsoft.com · CVE Record http://technet.microsoft.com/security/advisory/2887505
- pastebin.com/raw.php pastebin.com · CVE Record http://pastebin.com/raw.php?i=Hx1L5gu6
- blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-i... blogs.technet.com · CVE Record http://blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-i...
- packetstormsecurity.com/files/162585/Microsoft-Internet-Explorer-8-S... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/162585/Microsoft-Internet-Explor...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 10:38 UTC |
| CISA | 2026-06-02 14:06 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_setmousecapture_uaf.rb | Apr 28, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:C/I:C/A:C
Exploitation Status
Exploited in the wild
Recorded 2026-06-01 10:38:43 UTC · CVE
Proof of concept available
Recorded 2025-04-28 15:02:39 UTC
Weaknesses (CWE)
-
Use After Free
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_setmousecapture_uaf.rb | Apr 28, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:06 UTC about 2 months ago14:06 UTC · about 2 months ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
10:38 UTC about 2 months ago10:38 UTC · about 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Metasploit module available
Exploit module available
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Public PoC available
Public proof-of-concept code published
-
10:00 UTC almost 13 years ago10:00 UTC · almost 13 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC about 13 years ago00:00 UTC · about 13 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2013-3893
{
"cve_id": "CVE-2013-3893",
"title": "Use-after-free vulnerability in the SetMouseCapture implementation in mshtml....",
"affected_vendor": "Microsoft",
"affected_product": "Internet Explorer",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 8.8,
"epss_score": 0.8593,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}