CVE-2018-12389

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Feb 28, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-12397.2Dell EMC Unity Operating Environment (OE) versions prior to 4.3.0.1522077968 are affected by multiple OS command injection vulnerabilities. CVE-2018-123909.8Mozilla developers and community members reported memory safety bugs present in Firefox 62 and Firefox ESR 60.2. Some of these bugs showed eCVE-2018-123918.8During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. BecausCVE-2018-123929.8When manipulating user events in nested loops while opening a document through script, it is possible to trigger a potentially exploitable cCVE-2018-123937.5A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 represCVE-2018-123957.5By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. ThisCVE-2018-123966.5A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for poCVE-2018-123977.1A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websitCVE-2018-123986.5By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject stylesheets and bypass Content Security CVE-2018-123994.3When a new protocol handler is registered, the API accepts a title argument which can be used to mislead users about which domain is registeCVE-2018-12408.0Dell EMC ViPR Controller, versions after 3.0.0.38, contain an information exposure vulnerability in the VRRP. VRRP defaults to an insecure cCVE-2018-124005.3In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as they are in non-private mode. This allows
CVE-2018-12389: High severity, CVSS 8.8 | Vulnix