VIR Vulnerability Intelligence Relay

CVE-2016-3321

low
Published 2016-08-09 · Modified 2026-05-06
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
2.5
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4 NEW
—
not yet in upstream
VIR risk
3.5

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."

Predictions

Exploit likelihood
27%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Metasploit modules

auxiliary_gather/ie_sandbox_findfiles rank 300
Internet Explorer Iframe Sandbox File Name Disclosure Vulnerability
Source fetch failed: fetch_error — view the original via the link above.

Application impact
VendorProductVersionsFixed
windows microsoftinternet_explorer10
windows microsoftinternet_explorer11

References

CWEs

CWE-200

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.