CVE-2025-6436
thunderbirdVulnerabilityCVSS 8.1Patched
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 : 8.1 HIGH
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:N/AC:H/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 |
|---|---|---|---|---|
| Ubuntu:22.04:LTS | thunderbird | - | 1:140.7.1+build1-0ubuntu0.22.04.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | MozillaFirefox | - | 140.0-112.270.2 | fixed |
| SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | MozillaFirefox | - | 140.0-112.270.2 | fixed |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP6 | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP7 | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Enterprise Storage 7.1 | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| openSUSE:Leap 15.6 | MozillaFirefox | - | 140.1.0-150200.152.193.1 | fixed |
| SUSE:Linux Enterprise Module for Package Hub 15 SP6 | MozillaThunderbird | - | 140.1.0-150200.8.230.1 | fixed |
| SUSE:Linux Enterprise Module for Package Hub 15 SP7 | MozillaThunderbird | - | 140.1.0-150200.8.230.1 | fixed |
| SUSE:Linux Enterprise Workstation Extension 15 SP6 | MozillaThunderbird | - | 140.1.0-150200.8.230.1 | fixed |
| SUSE:Linux Enterprise Workstation Extension 15 SP7 | MozillaThunderbird | - | 140.1.0-150200.8.230.1 | fixed |
| openSUSE:Leap 15.6 | MozillaThunderbird | - | 140.1.0-150200.8.230.1 | fixed |
| openSUSE:Tumbleweed | MozillaFirefox | - | 140.0.2-1.1 | fixed |
| openSUSE:Tumbleweed | MozillaThunderbird | - | 140.1.0-1.1 | fixed |
| openSUSE:Tumbleweed | firefox-esr | - | 140.1.0-1.1 | fixed |