CVE-2016-5291

Name: CVE-2016-5291
Creator: NVD / NIST
Published: 2018-06-11T21:29:00.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.44%

Last modified Jun 17, 2026

CVE-2016-5291 is a vulnerability of currently unknown severity. A same-origin policy bypass with local shortcut files to load arbitrary local content from disk. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

A same-origin policy bypass with local shortcut files to load arbitrary local content from disk. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

Metrics

EPSS Probability

0.44%

35.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 45.5.0
Mozilla	Firefox	< 50.0
Mozilla	Thunderbird	< 45.5.0
Debian	Debian Linux	8.0

References

http://rhn.redhat.com/errata/RHSA-2016-2780.htmlThird Party Advisory
http://www.securityfocus.com/bid/94336Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037298Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1292159Exploit, Issue Tracking, Vendor Advisory
https://security.gentoo.org/glsa/201701-15Third Party Advisory
https://www.debian.org/security/2016/dsa-3730Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2016-89/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2016-90/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2016-93/Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2780.htmlThird Party Advisory
http://www.securityfocus.com/bid/94336Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037298Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1292159Exploit, Issue Tracking, Vendor Advisory
https://security.gentoo.org/glsa/201701-15Third Party Advisory
https://www.debian.org/security/2016/dsa-3730Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2016-89/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2016-90/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2016-93/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-5291?

A same-origin policy bypass with local shortcut files to load arbitrary local content from disk. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

How severe is CVE-2016-5291?

Severity scoring for CVE-2016-5291 is pending analysis. The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2016-5291?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-5291?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST