CVE-2026-6748

Name
CVE-2026-6748
Description
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security@mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=2022604
security@mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-30/
security@mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-32/
security@mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-33/
security@mozilla.org https://www.mozilla.org/security/advisories/mfsa2026-34/
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:10757
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:10766
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:10767
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:12285
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:13537
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:15892
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:17477
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:17687
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:17688
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:17689
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:17690
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19041
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19131
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19201
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19348
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19461
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19462
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19463
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19464
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19465
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19466
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19467
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19468
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19469
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19542
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19655
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:19704
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/security/cve/CVE-2026-6748
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://bugzilla.redhat.com/show_bug.cgi?id=2460103
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6748.json

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* firefox >= None < 140.10.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* firefox >= None < 150.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* thunderbird >= None < 140.10.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
thunderbird edge-community 140.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 140.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 139.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 138.0-r2 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 138.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 138.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 137.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 137.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.8.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.7.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.7.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.6.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.5.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.5.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.5.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.4.4-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.4.3-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.4.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 128.1.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 115.10.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 115.5.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 115.4.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 115.4.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
thunderbird edge-community 102.1.0-r0 psykose <alice@ayaya.dev> possibly vulnerable
thunderbird edge-community 102.0-r0 psykose <alice@ayaya.dev> possibly vulnerable
thunderbird edge-community 91.10.0-r0 psykose <alice@ayaya.dev> possibly vulnerable
thunderbird edge-community 91.9.1-r0 psykose <alice@ayaya.dev> possibly vulnerable
thunderbird edge-community 91.9.0-r0 None possibly vulnerable
thunderbird edge-community 91.8.0-r0 None possibly vulnerable
thunderbird edge-community 91.7.0-r0 None possibly vulnerable
thunderbird edge-community 91.6.2-r0 None possibly vulnerable
thunderbird edge-community 91.6.0-r0 None possibly vulnerable
thunderbird edge-community 91.5.0-r0 None possibly vulnerable
thunderbird edge-community 91.4.1-r0 None possibly vulnerable
thunderbird edge-community 91.4.0-r0 None possibly vulnerable
thunderbird edge-community 91.3.2-r0 None possibly vulnerable
thunderbird edge-community 78.9.0-r0 None possibly vulnerable
thunderbird edge-community 78.7.0-r0 None possibly vulnerable
thunderbird edge-community 78.6.1-r0 None possibly vulnerable
thunderbird edge-community 78.5.1-r0 None possibly vulnerable
thunderbird edge-community 68.10.0-r0 None possibly vulnerable
thunderbird edge-community 68.9.0-r0 None possibly vulnerable
thunderbird edge-community 68.8.0-r0 None possibly vulnerable
thunderbird edge-community 68.7.0-r0 None possibly vulnerable
thunderbird edge-community 68.6.0-r0 None possibly vulnerable
thunderbird edge-community 68.5.0-r0 None possibly vulnerable
firefox edge-community 147.0.3-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 147.0.3-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 147.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 145.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 145.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 144.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 144.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 143.0.1-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 143.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 143.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 142.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 142.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 142.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 141.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 140.0.4-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 140.0.4-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 140.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 139.0.4-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 139.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 139.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 138.0.4-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 138.0.3-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 138.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 138.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 138.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 137.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 136.0.4-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 136.0.3-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 136.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 136.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 135.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 135.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 134.0.1-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 134.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 134.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 133.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 132.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 132.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 132.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 131.0.3-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 131.0.2-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 131.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 131.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 130.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 130.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 129.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 129.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 128.0.3-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 128.0.2-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 128.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 128.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 128.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 127.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 127.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 126.0.1-r4 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 126.0.1-r3 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 126.0.1-r2 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 126.0.1-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 126.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 126.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 125.0.3-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 125.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 125.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 124.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 124.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 124.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 123.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 123.0-r3 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 123.0-r2 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 123.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 123.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 122.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 122.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 122.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 121.0.1-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 121.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 121.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 121.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 120.0.1-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 120.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 120.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 120.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 119.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 119.0-r1 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 119.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 118.0.2-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 118.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 118.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 117.0.1-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable
firefox edge-community 103.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 102.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 101.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 100.0.2-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 100.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 99.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 98.0-r0 None possibly vulnerable
firefox edge-community 97.0.2-r0 None possibly vulnerable
firefox edge-community 97.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 96.0-r0 None possibly vulnerable
firefox edge-community 95.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 94.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 93.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 92.0.1-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 90.0.2-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 90.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 89.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 88.0.1-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 88.0-r0 Rasmus Thomsen <oss@cogitri.dev> possibly vulnerable
firefox edge-community 87.0-r0 None possibly vulnerable
firefox edge-community 85.0-r0 None possibly vulnerable
firefox edge-community 84.0.2-r0 None possibly vulnerable
firefox edge-community 84.0.1-r0 None possibly vulnerable
firefox edge-community 83.0-r0 None possibly vulnerable
firefox edge-community 82.0.3-r0 None possibly vulnerable
firefox edge-community 82.0-r0 None possibly vulnerable
firefox edge-community 81.0-r0 None possibly vulnerable
firefox edge-community 80.0-r0 None possibly vulnerable
firefox edge-community 79.0-r0 None possibly vulnerable
firefox edge-community 78.0-r0 None possibly vulnerable
firefox edge-community 77.0-r0 None possibly vulnerable
firefox edge-community 76.0-r0 None possibly vulnerable
firefox edge-community 75.0-r0 None possibly vulnerable
firefox edge-community 74.0.1-r0 None possibly vulnerable
firefox edge-community 74.0-r0 None possibly vulnerable
firefox edge-community 71.0.1-r0 None possibly vulnerable
firefox edge-community 70.0-r0 None possibly vulnerable
firefox edge-community 68.0.2-r0 None possibly vulnerable
firefox 3.23-community 145.0-r0 Patrycja Rosa <alpine@ptrcnull.me> possibly vulnerable