CVE-2020-12408

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

When browsing a document hosted on an IP address, an attacker could insert certain characters to flip domain and path information in the address bar. This vulnerability affects Firefox < 77.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected software

Vendor	Product	Versions
Mozilla	Firefox	>= unspecified, < 77

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1623888Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-20/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1623888Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-20/Vendor Advisory

Timeline

Published: Jul 9, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-124098.8When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL. This vulnerability affect CVE-2020-12417.8A security feature bypass vulnerability exists when Windows Kernel fails to properly sanitize certain parameters.To exploit the vulnerabilit CVE-2020-124108.8Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. Some of these bugs showed evidence of memory corr CVE-2020-124118.8Mozilla developers reported memory safety bugs present in Firefox 76. Some of these bugs showed evidence of memory corruption and we presume CVE-2020-124124.3By navigating a tab using the history API, an attacker could cause the address bar to display the incorrect domain (with the https:// scheme CVE-2020-124135.9The Raccoon attack is a timing attack on DHE ciphersuites inherit in the TLS specification. To mitigate this vulnerability, Firefox disabled CVE-2020-124146.5IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly CVE-2020-124156.5When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a su CVE-2020-124168.8A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink, resulting in a use-after-free, memory c CVE-2020-124178.8Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a po CVE-2020-124186.5Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This CVE-2020-124198.8When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-fre