CVE-2013-3893
Microsoft Internet Explorer Resource Management Errors Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 2 September 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 85.93% probability · 100th percentile
- CISA KEV
- Listed 12 August 2025 · due 2 September 2025
- Weakness
- CWE-416
- Affected
- microsoft/internet explorer
- Source
- secure@microsoft.com
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://learn.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-080 ; https://nvd.nist.gov/vuln/detail/CVE-2013-3893
References
- http://blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-it-workaround-available.aspxExploit
- http://blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-two-vulnerabilities-under-limited-targeted-attacks.aspxVendor Advisory
- http://jvn.jp/en/jp/JVN27443259/index.htmlThird Party Advisory
- http://jvndb.jvn.jp/ja/contents/2013/JVNDB-2013-000093.htmlThird Party Advisory
- http://packetstormsecurity.com/files/162585/Microsoft-Internet-Explorer-8-SetMouseCapture-Use-After-Free.htmlExploit
- http://pastebin.com/raw.php?i=Hx1L5gu6Exploit
- http://technet.microsoft.com/security/advisory/2887505Vendor Advisory
- http://www.securityfocus.com/bid/62453Broken Link
- http://www.us-cert.gov/ncas/alerts/TA13-288AUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-080Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18665Broken Link
- http://blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-it-workaround-available.aspxExploit
- http://blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-two-vulnerabilities-under-limited-targeted-attacks.aspxVendor Advisory
- http://jvn.jp/en/jp/JVN27443259/index.htmlThird Party Advisory
- http://jvndb.jvn.jp/ja/contents/2013/JVNDB-2013-000093.htmlThird Party Advisory
- http://packetstormsecurity.com/files/162585/Microsoft-Internet-Explorer-8-SetMouseCapture-Use-After-Free.htmlExploit
- http://pastebin.com/raw.php?i=Hx1L5gu6Exploit
- http://technet.microsoft.com/security/advisory/2887505Vendor Advisory
- http://www.securityfocus.com/bid/62453Broken Link
- http://www.us-cert.gov/ncas/alerts/TA13-288AUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-080Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18665Broken Link
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3893US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.