CVE-2016-5293

When the Mozilla Updater is run, if the Updater's log file in the working directory points to a hardlink, data can be appended to an arbitrary local file. This vulnerability requires local system access. Note: this issue only affects Windows operating systems. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.

• CWE-20

• 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=1246945Issue Tracking
• 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
• 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=1246945Issue Tracking
• 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

Published

Jun 11, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2016-5287A potentially exploitable use-after-free crash during actor …
• CVE-2016-5288Web content could access information in the HTTP cache if e1…
• CVE-2016-5289Memory safety bugs were reported in Firefox 49. Some of thes…
• CVE-2016-5290Memory safety bugs were reported in Firefox 49 and Firefox E…
• CVE-2016-5291A same-origin policy bypass with local shortcut files to loa…
• CVE-2016-5292During URL parsing, a maliciously crafted URL can cause a po…
• CVE-2016-5294The Mozilla Updater can be made to choose an arbitrary targe…
• CVE-2016-5295This vulnerability allows an attacker to use the Mozilla Mai…
• CVE-2016-5296A heap-buffer-overflow in Cairo when processing SVG content …
• CVE-2016-5297An error in argument length checking in JavaScript, leading …
• CVE-2016-5298A mechanism where disruption of the loading of a new web pag…
• CVE-2016-5299A previously installed malicious Android application with sa…