CVE-2026-8090

HIGH

Use-after-free in the DOM: Networking component

Title source: cna
STIX 2.1

Description

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.

References (6)

Core 6

Scores

CVSS v3 7.3
EPSS 0.0002
EPSS Percentile 6.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (9)
mozilla/firefox < 115.35.2
mozilla/firefox < 150.0.2
Mozilla/Firefox 115.35.2 - 115.*
Mozilla/Firefox 140.10.2 - 140.*
Mozilla/Firefox 150.0.2
mozilla/thunderbird < 140.10.2
mozilla/thunderbird < 150.0.2
Mozilla/Thunderbird 140.10.2 - 140.*
Mozilla/Thunderbird 150.0.2
Published May 07, 2026
Tracked Since May 07, 2026