CVE-2016-3321

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."

Category

2.5
CVSS
Severity: Low
CVSS 3.0 •
CVSS 2.0 •
EPSS 25.72% Top 5%
Vendor Advisory microsoft.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-095 vendor advisory
http://www.securitytracker.com/id/1036562 vdb entry
https://www.securify.nl/advisory/SFY20160301/internet_explorer_iframe_sandbox_local_file_name_disclosure_vulnerability.html third party advisory vdb entry
http://seclists.org/fulldisclosure/2016/Aug/44 third party advisory mailing list
http://www.securityfocus.com/archive/1/539174/100/0/threaded mailing list
http://www.securityfocus.com/bid/92291 vdb entry

Frequently Asked Questions

What is the severity of CVE-2016-3321?
CVE-2016-3321 has been scored as a low severity vulnerability.
How to fix CVE-2016-3321?
To fix CVE-2016-3321, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-3321 being actively exploited in the wild?
It is possible that CVE-2016-3321 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~26% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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