High severity8.8NVD Advisory· Published Jul 9, 2020· Updated Jun 17, 2026
CVE-2020-12406
CVE-2020-12406
Description
Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
32<77+ 2 more
- (no CPE)range: <77
- (no CPE)range: unspecified
- (no CPE)range: unspecified
<68.9.0+ 1 more
- (no CPE)range: <68.9.0
- (no CPE)range: unspecified
- osv-coords27 versionspkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg: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%20SP4pkg: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%20SP4pkg: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%20Crowbar%208pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2
< 128.5.1-1.1+ 26 more
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 68.9.0-lp151.2.48.1
- (no CPE)range: < 92.0-1.2
- (no CPE)range: < 68.9.0-lp151.2.41.1
- (no CPE)range: < 91.1.1-1.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-3.91.1
- (no CPE)range: < 68.9.0-3.91.1
- (no CPE)range: < 68.9.0-78.77.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-109.123.1
- (no CPE)range: < 68.9.0-3.85.2
- (no CPE)range: < 68.9.0-3.85.2
Patches
Vulnerability mechanics
References
5- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingVendor Advisory
- usn.ubuntu.com/4421-1/nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2020-20/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-21/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-22/nvdVendor Advisory
News mentions
0No linked articles in our index yet.