7.5

CVE-2026-6747

Use-after-free in the WebRTC component

Use-after-free in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox SwEditionesr Version < 140.10.0
Mozilla ≫ Firefox SwEdition- Version < 150.0
Mozilla ≫ Thunderbird SwEditionesr Version < 140.10.0
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.319
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

CWE-825 Expired Pointer Dereference

The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.

https://www.mozilla.org/security/advisories/mfsa2026-30/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-32/
Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=2021769
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-33/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-34/
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:10757
https://access.redhat.com/errata/RHSA-2026:10766
https://access.redhat.com/errata/RHSA-2026:10767
https://access.redhat.com/errata/RHSA-2026:12285
https://access.redhat.com/errata/RHSA-2026:13537
https://access.redhat.com/errata/RHSA-2026:15892
https://access.redhat.com/errata/RHSA-2026:17477
https://access.redhat.com/errata/RHSA-2026:17687
https://access.redhat.com/errata/RHSA-2026:17688
https://access.redhat.com/errata/RHSA-2026:17689
https://access.redhat.com/errata/RHSA-2026:17690
https://access.redhat.com/errata/RHSA-2026:19041
https://access.redhat.com/errata/RHSA-2026:19131
https://access.redhat.com/errata/RHSA-2026:19201
https://access.redhat.com/errata/RHSA-2026:19348
https://access.redhat.com/errata/RHSA-2026:19461
https://access.redhat.com/errata/RHSA-2026:19462
https://access.redhat.com/errata/RHSA-2026:19463
https://access.redhat.com/errata/RHSA-2026:19464
https://access.redhat.com/errata/RHSA-2026:19465
https://access.redhat.com/errata/RHSA-2026:19466
https://access.redhat.com/errata/RHSA-2026:19467
https://access.redhat.com/errata/RHSA-2026:19468
https://access.redhat.com/errata/RHSA-2026:19469
https://access.redhat.com/errata/RHSA-2026:19542
https://access.redhat.com/errata/RHSA-2026:19655
https://access.redhat.com/errata/RHSA-2026:19704
https://access.redhat.com/security/cve/CVE-2026-6747
https://bugzilla.redhat.com/show_bug.cgi?id=2460095
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6747.json