CVE-2016-5294
The Mozilla Updater can be made to choose an arbitrary target working directory for output files resulting from the update process.
Does this matter?
Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.
Description
The Mozilla Updater can be made to choose an arbitrary target working directory for output files resulting from the update process. This vulnerability requires local system access. Note: this issue only affects Windows operating systems. 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:N/I:H/A:N
- EPSS
- 0.41% probability · 35th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mozilla/firefox · mozilla/thunderbird
- 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://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=1246972Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201701-15Third 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://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=1246972Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201701-15Third 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.