High severity8.8NVD Advisory· Published Jul 9, 2020· Updated Jun 17, 2026
CVE-2020-12426
CVE-2020-12426
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 77. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 78.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
47<78+ 1 more
- (no CPE)range: <78
- (no CPE)range: unspecified
- osv-coords45 versionspkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox-branding-SLED&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP1pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/MozillaFirefox-branding-SLE&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/MozillaFirefox&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 128.5.1-1.1+ 44 more
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 78.0.1-lp151.2.53.1
- (no CPE)range: < 78.0.1-lp152.2.5.1
- (no CPE)range: < 92.0-1.2
- (no CPE)range: < 78-21.12.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-4.14.1
- (no CPE)range: < 78-4.14.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78-35.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-3.94.2
- (no CPE)range: < 78.0.1-3.94.2
- (no CPE)range: < 78.0.1-78.80.2
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
- (no CPE)range: < 78.0.1-112.3.1
Patches
Vulnerability mechanics
References
5- bugzilla.mozilla.org/buglist.cginvdExploitIssue TrackingPatchVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.htmlnvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202007-10nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2020-24/nvdVendor Advisory
News mentions
0No linked articles in our index yet.