High severity8.8NVD Advisory· Published Oct 1, 2020· Updated Jun 17, 2026
CVE-2020-15673
CVE-2020-15673
Description
Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
46cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <81.0
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*range: <78.3
- (no CPE)range: <81
- (no CPE)range: unspecified
- (no CPE)range: unspecified
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <78.3
- (no CPE)range: <78.3
- (no CPE)range: unspecified
- osv-coords34 versionspkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/mozilla-nspr&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/mozilla-nspr&distro=openSUSE%20Leap%2015.2pkg: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%209pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1pkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2
< 78.3.0-lp151.2.69.1+ 33 more
- (no CPE)range: < 78.3.0-lp151.2.69.1
- (no CPE)range: < 78.3.0-lp152.2.21.1
- (no CPE)range: < 92.0-1.2
- (no CPE)range: < 78.4.0-lp151.2.53.1
- (no CPE)range: < 78.4.0-lp152.2.13.1
- (no CPE)range: < 91.1.1-1.1
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 4.25.1-lp151.2.13.1
- (no CPE)range: < 4.25.1-lp152.2.3.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-3.108.1
- (no CPE)range: < 78.3.0-8.6.1
- (no CPE)range: < 78.3.0-78.93.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.3.0-112.22.1
- (no CPE)range: < 78.4.0-3.99.1
- (no CPE)range: < 78.4.0-3.99.1
- (no CPE)range: < 4.25.1-3.15.2
- (no CPE)range: < 4.25.1-3.15.2
Patches
Vulnerability mechanics
References
9- 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/msg00020.htmlnvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202010-02nvdThird Party Advisory
- www.debian.org/security/2020/dsa-4770nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2020-42/nvdRelease NotesVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-43/nvdRelease NotesVendor Advisory
- www.mozilla.org/security/advisories/mfsa2020-44/nvdRelease NotesVendor Advisory
News mentions
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