7.5

CVE-2026-8090

Use-after-free in the DOM: Networking component

Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mozilla ≫ Firefox SwEdition esr Version < 115.35.2
Mozilla ≫ Firefox SwEdition - Version < 150.0.2
Mozilla ≫ Firefox SwEdition esr Version >= 128.0 < 140.10.2
Mozilla ≫ Thunderbird SwEdition esr Version < 140.10.2
Mozilla ≫ Thunderbird SwEdition - Version < 150.0.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.32% 0.233
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.3 3.9 3.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.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://bugzilla.mozilla.org/show_bug.cgi?id=2034352
Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-40/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-41/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-42/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-43/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-44/
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2467709
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8090.json
https://access.redhat.com/errata/RHSA-2026:19160
https://access.redhat.com/errata/RHSA-2026:20566
https://access.redhat.com/errata/RHSA-2026:20574
https://access.redhat.com/errata/RHSA-2026:24508
https://access.redhat.com/errata/RHSA-2026:24509
https://access.redhat.com/errata/RHSA-2026:24510
https://access.redhat.com/errata/RHSA-2026:24511
https://access.redhat.com/errata/RHSA-2026:24516
https://access.redhat.com/errata/RHSA-2026:24755
https://access.redhat.com/errata/RHSA-2026:24983
https://access.redhat.com/errata/RHSA-2026:25015
https://access.redhat.com/security/cve/CVE-2026-8090
https://access.redhat.com/errata/RHSA-2026:21381
https://access.redhat.com/errata/RHSA-2026:22325
https://access.redhat.com/errata/RHSA-2026:22643
https://access.redhat.com/errata/RHSA-2026:26174
https://access.redhat.com/errata/RHSA-2026:26268
https://access.redhat.com/errata/RHSA-2026:26269
https://access.redhat.com/errata/RHSA-2026:26270
https://access.redhat.com/errata/RHSA-2026:26521
https://access.redhat.com/errata/RHSA-2026:26536
https://access.redhat.com/errata/RHSA-2026:26539