CVE-2020-12410

HIGH 8.8CVE-2020-12410 · Published 09/07/2020 · updated 17/06/2026

In short

CVE-2020-12410 is a HIGH (CVSS 8.8) vulnerability affecting firefox (mozilla), firefox esr (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.7%, higher than 77.6% of all vulnerabilities.
Fix: update to 76.0, 68.8.0 or later.

Package	Affected versions	Patched versions
firefox mozilla	`< 76.0`	`76.0`
firefox esr mozilla	`< 68.8.0`	`68.8.0`

Description

Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. 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 Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

References

bugzilla.mozilla.org/buglist.cgi · Issue Tracking
usn.ubuntu.com/4421-1 · Third Party Advisory
mozilla.org/security/advisories/mfsa2020-20 · Vendor Advisory
mozilla.org/security/advisories/mfsa2020-21 · Vendor Advisory
mozilla.org/security/advisories/mfsa2020-22 · Vendor Advisory

More vulnerabilities in firefox

See all →

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free

Package

Affected versions

Patched versions

firefox

mozilla

< 76.0

76.0

firefox esr

mozilla

< 68.8.0

68.8.0

Description

More vulnerabilities in firefox

See all →