8.8

CVE-2026-12289

Privilege escalation in the Graphics: WebRender component

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox SwEditionesr Version < 115.37.0
Mozilla ≫ Firefox SwEdition- Version < 152.0
Mozilla ≫ Firefox SwEditionesr Version >= 140.0 < 140.12.0
Mozilla ≫ Thunderbird SwEdition- Version < 152.0.0
Mozilla ≫ Thunderbird SwEditionesr Version >= 140.0 < 140.12.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.314
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.5 1.6 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-266 Incorrect Privilege Assignment

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

CWE-269 Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

https://bugzilla.mozilla.org/show_bug.cgi?id=2023443
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-57/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-58/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-59/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-60/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-61/
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2489229
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12289.json
https://access.redhat.com/errata/RHSA-2026:27717
https://access.redhat.com/errata/RHSA-2026:27733
https://access.redhat.com/errata/RHSA-2026:27734
https://access.redhat.com/errata/RHSA-2026:29940
https://access.redhat.com/errata/RHSA-2026:30846
https://access.redhat.com/errata/RHSA-2026:33445
https://access.redhat.com/errata/RHSA-2026:36100
https://access.redhat.com/errata/RHSA-2026:36101
https://access.redhat.com/errata/RHSA-2026:36102
https://access.redhat.com/errata/RHSA-2026:36103
https://access.redhat.com/security/cve/CVE-2026-12289
https://access.redhat.com/errata/RHSA-2026:37210
https://access.redhat.com/errata/RHSA-2026:37391