CVE-2016-3321
Microsoft Internet Explorer 10 and 11 load different files for attempts to open a file:// URL depending on whether the file exists, which…
- 2.5LowCVSS base score
- 37.9%Exploitation in 30 daysEPSS · top 1.4% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Microsoft Internet Explorer 10 and 11 load different files for attempts to open a file:// URL depending on whether the file exists, which allows local users to enumerate files via vectors involving a file:// URL and an HTML5 sandbox iframe, aka "Internet Explorer Information Disclosure Vulnerability."
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 for it.
Show the exploits1
Metasploit modules1 module
- Internet Explorer Iframe Sandbox File Name Disclosure Vulnerability (Metasploit module) (opens in a new tab)
auxiliary/gather/ie_sandbox_findfilesRank normaldisclosed 9 Aug 2016
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
- 5 months later
· 5 months later
Published
- 8 years later
· 8 years 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Low2.5 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 37.9% · top 1.4% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.5.
Affected products
n/a
- affected n/a
References
6
- MS16-095 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 1036562 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://www.securify.nl/advisory/SFY20160301/internet_explorer_iframe_sandbox_local_file_name_disclosure_vulnerability.html (opens in a new tab)x_refsource_MISCx_transferred
- 20160809 Internet Explorer iframe sandbox local file name disclosure vulnerability (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 20160809 Internet Explorer iframe sandbox local file name disclosure vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 92291 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
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)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2016-4353 (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-2016-3321)Record last updated .