Critical severity9.8NVD Advisory· Published Oct 22, 2020· Updated Jun 17, 2026
CVE-2020-15683
CVE-2020-15683
Description
Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 ESR < 78.4, Firefox < 82, and Thunderbird < 78.4.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
46unspecified+ 4 more
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <82.0
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*range: <78.4
- (no CPE)range: <82
unspecified+ 2 more
- (no CPE)range: unspecified
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <78.4
- (no CPE)range: <78.4
- osv-coords34 versionspkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/mozilla-nspr&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP1pkg: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%20Enterprise%20Storage%205pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/MozillaFirefox&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2pkg:rpm/opensuse/mozilla-nspr&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg: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%20SP4-LTSSpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.1
< 78.4.0-lp151.2.73.1+ 33 more
- (no CPE)range: < 78.4.0-lp151.2.73.1
- (no CPE)range: < 78.4.0-lp152.2.24.1
- (no CPE)range: < 78.4.0-lp152.2.13.1
- (no CPE)range: < 4.25.1-lp152.2.3.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 92.0-1.2
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 78.4.0-78.99.1
- (no CPE)range: < 78.4.0-8.11.2
- (no CPE)range: < 78.4.0-3.113.3
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 4.25.1-3.15.2
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 4.25.1-3.15.2
- (no CPE)range: < 78.4.0-3.99.1
- (no CPE)range: < 78.4.0-3.99.1
- (no CPE)range: < 4.25.1-lp151.2.13.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 91.1.1-1.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-112.28.1
- (no CPE)range: < 78.4.0-lp151.2.53.1
Patches
Vulnerability mechanics
References
11- lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00062.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.htmlnvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.htmlnvdMailing ListThird Party Advisory
- bugzilla.mozilla.org/buglist.cginvdBroken LinkIssue TrackingVendor Advisory
- lists.debian.org/debian-lts-announce/2020/10/msg00027.htmlnvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202010-08nvdThird Party Advisory
- www.debian.org/security/2020/dsa-4780nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2020-45/nvdRelease NotesVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-46/nvdRelease NotesVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-47/nvdRelease NotesVendor Advisory
News mentions
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