Description
Privilege escalation in the DOM: Workers component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
References (5)
Core 5
Scores
CVSS v3
8.8
EPSS
0.0004
EPSS Percentile
12.4%
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-269
Status
published
Products (8)
mozilla/firefox
< 140.11.0
mozilla/firefox
< 151.0.0
Mozilla/Firefox
140.11 - 140.*
Mozilla/Firefox
151
mozilla/thunderbird
< 140.11
mozilla/thunderbird
< 151.0.0
Mozilla/Thunderbird
140.11 - 140.*
Mozilla/Thunderbird
151
Published
May 19, 2026
Tracked Since
May 19, 2026