CVE-2016-3321
LOWEPSS 98th pctlDescription
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."
CVSS v3 Vector
Exploitability
Impact
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Exploit Intelligence
Very high risk: more likely to be exploited than 98% of all known CVEs.
References
- http://seclists.org/fulldisclosure/2016/Aug/44
- http://www.securityfocus.com/archive/1/539174/100/0/threaded
- http://www.securityfocus.com/bid/92291
- http://www.securitytracker.com/id/1036562
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-095
- https://www.securify.nl/advisory/SFY20160301/internet_explorer_iframe_sandbox_local_file_name_disclosure_vulnerability.html
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TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.