CVE-2026-6764

MEDIUM

Incorrect boundary conditions in the DOM: Device Interfaces component

Title source: cna

Description

Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

References (5)

https://bugzilla.mozilla.org/show_bug.cgi?id=2022162

https://www.mozilla.org/security/advisories/mfsa2026-30/

https://www.mozilla.org/security/advisories/mfsa2026-32/

https://www.mozilla.org/security/advisories/mfsa2026-33/

https://www.mozilla.org/security/advisories/mfsa2026-34/

Scores

CVSS v3 6.5

EPSS 0.0006

EPSS Percentile 17.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-119

Status published

Products (7)

mozilla/firefox < 140.10.0

mozilla/firefox < 150.0

Mozilla/Firefox 140.10 - 140.*

Mozilla/Firefox 150

mozilla/thunderbird 140.0 - 140.10.0

Mozilla/Thunderbird 140.10 - 140.*

Mozilla/Thunderbird 150

Published Apr 21, 2026

Tracked Since Apr 21, 2026