VulnerabilityModified
CVE-2016-5291
A same-origin policy bypass with local shortcut files to load arbitrary local content from disk.
MEDIUM 5.5EPSS 0.43%
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.43% probability · 37th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mozilla/firefox · mozilla/thunderbird · debian/debian linux
- Source
- security@mozilla.org
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.