CVE-2013-3893
Use-after-free vulnerability in the SetMouseCapture implementation in mshtml.dll in Microsoft Internet Explorer 6 through 11 allows remote…
- 8.8HighCVSS base score
- 87.6%Exploitation in 30 daysEPSS · top 0.2% of all CVEs
- YesKnown exploitedin CISA's KEV since 12 Aug 2025
- 3Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Internet Explorer Resource Management Errors Vulnerability.
- Added
- 12 Aug 2025
- Fix due (US federal)
- 2 Sept 2025
- Used by ransomware
- Not known
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
ENISA's EU Vulnerability Database lists it as exploited, from CISA's KEV, since 12 Aug 2025.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and 2 Exploit-DB entries for it. CISA's SSVC rates its exploitation: it is being exploited.
Show the exploits3
Metasploit modules1 module
- MS13-080 Microsoft Internet Explorer SetMouseCapture Use-After-Free (Metasploit module) (opens in a new tab)
exploit/windows/browser/ie_setmousecapture_uafRank normaldisclosed 17 Sept 2013
Exploit-DB2 entries
- Microsoft Internet Explorer 8 - 'SetMouseCapture ' Use After Free (Exploit-DB entry) (opens in a new tab)
EDB-ID 49872local, windowspublished 17 May 2021Not verified
- Micorosft Internet Explorer - SetMouseCapture Use-After-Free (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 28682remote, windowspublished 2 Oct 2013Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
- 4 months later
· 4 months later
Published
- 12 years later
· 12 years later
Added to CISA KEV
Known exploited in the wild
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 87.6% · top 0.2% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
n/a
- affected n/a
References
References12
- JVNDB-2013-000093 (opens in a new tab)third-party-advisoryx_refsource_JVNDBx_transferred
- JVN#27443259 (opens in a new tab)third-party-advisoryx_refsource_JVNx_transferred
- http://blogs.technet.com/b/srd/archive/2013/10/08/ms13-080-addresses-two-vulnerabilities-under-limited-targeted-attacks.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- 62453 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- oval:org.mitre.oval:def:18665 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- TA13-288A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- http://technet.microsoft.com/security/advisory/2887505 (opens in a new tab)x_refsource_CONFIRMx_transferred
- MS13-080 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- http://pastebin.com/raw.php?i=Hx1L5gu6 (opens in a new tab)x_refsource_MISCx_transferred
- http://blogs.technet.com/b/srd/archive/2013/09/17/cve-2013-3893-fix-it-workaround-available.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://packetstormsecurity.com/files/162585/Microsoft-Internet-Explorer-8-SetMouseCapture-Use-After-Free.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-3893 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2013-3825 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2013-3893)Record last updated .