CVE-2022-22751

HIGH

Firefox < 96.0 and Firefox ESR < 91.5 - Out-of-bounds Write

Title source: llm

Description

Mozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson Smith, Simon Giesecke, and Steve Fink reported memory safety bugs present in Firefox 95 and Firefox ESR 91.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

References (4)

Core 4

Core References

Issue Tracking, Vendor Advisory

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1664149%2C1737816%2C1739366%2C1740274%2C1740797%2C1741201%2C1741869%2C1743221%2C1743515%2C1745373%2C1746011

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2022-01/

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2022-02/

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2022-03/

Scores

CVSS v3 8.8

EPSS 0.0066

EPSS Percentile 71.2%

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-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