by Kastro CVE-2026-6748
Mozilla Firefox — Uninitialized memory in the Audio/Video: Web Codecs component
Description · from the CVE record
Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Affected
ProductAffectedFixed inSource
Firefoxsee advisory140.10CNA
Thunderbirdsee advisory140.10CNA
Red Hat Enterprise Linux 10see advisory0:140.10.0-1.el10_1redhat-SADP
Red Hat Enterprise Linux 10see advisory0:140.10.0-1.el10_1redhat-SADP
Red Hat Enterprise Linux 10.0 Extended Update Supportsee advisory0:140.10.0-1.el10_0redhat-SADP
Red Hat Enterprise Linux 10.0 Extended Update Supportsee advisory0:140.10.0-1.el10_0redhat-SADP
Red Hat Enterprise Linux 7 Extended Lifecycle Supportsee advisory0:140.10.0-2.el7_9redhat-SADP
Red Hat Enterprise Linux 8see advisory0:140.10.0-1.el8_10redhat-SADP
Red Hat Enterprise Linux 8see advisory0:140.10.0-1.el8_10redhat-SADP
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportsee advisory0:140.10.0-1.el8_4redhat-SADP
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportsee advisory0:140.10.0-1.el8_4redhat-SADP
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onsee advisory0:140.10.0-1.el8_4redhat-SADP
Scores by source
CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
redhat-SADP (CNA)7.5CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total