CVE-2020-26972
firefoxVulnerabilityCVSS 9.8Patched
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 3.1 : 9.8 CRITICAL · CVSS 2.0 : 7.5 HIGH
Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Arch | firefox | 83.0-2 | 84.0-1 | fixed |
| Ubuntu:16.04:LTS | firefox | - | 84.0+build3-0ubuntu0.16.04.1 | fixed |
| Ubuntu:18.04:LTS | firefox | - | 84.0+build3-0ubuntu0.18.04.1 | fixed |
| Ubuntu:20.04:LTS | firefox | - | 84.0+build3-0ubuntu0.20.04.1 | fixed |
| openSUSE:Tumbleweed | MozillaFirefox | - | 92.0-1.2 | fixed |
| openSUSE:Tumbleweed | firefox-esr | - | 128.5.1-1.1 | fixed |