CVE-2026-6750

HIGH

Privilege escalation in the Graphics: WebRender component

Title source: cna
STIX 2.1

Description

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

References (36)

Core 36
Core References

Scores

CVSS v3 8.8
EPSS 0.0048
EPSS Percentile 39.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-266 CWE-269
Status published
Products (8)
mozilla/firefox < 115.35.0
mozilla/firefox < 150.0
Mozilla/Firefox 115.35 - 115.*
Mozilla/Firefox 140.10 - 140.*
Mozilla/Firefox 150
mozilla/thunderbird < 140.10.0
Mozilla/Thunderbird 140.10 - 140.*
Mozilla/Thunderbird 150
Published Apr 21, 2026
Tracked Since Apr 21, 2026