CVE-2022-22738

HIGH

Firefox < 96.0 and Firefox ESR < 91.5 - Out-of-bounds Write via CSS Filter Effect

Title source: llm
STIX 2.1

Description

Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Scores

CVSS v3 8.8
EPSS 0.0046
EPSS Percentile 64.5%
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 poc
Automatable no
Technical Impact total

Details

CWE
CWE-787
Status published
Products (3)
mozilla/firefox < 96.0
mozilla/firefox_esr < 91.5
mozilla/thunderbird < 91.5
Published Dec 22, 2022
Tracked Since Feb 18, 2026