Description
A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
References (4)
Scores
CVSS v3
8.8
EPSS
0.0035
EPSS Percentile
57.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-909
Status
published
Products (3)
mozilla/firefox
< 88.0
mozilla/firefox_esr
< 78.10
mozilla/thunderbird
< 78.10
Published
Jun 24, 2021
Tracked Since
Feb 18, 2026