CVE-2023-4056

CRITICAL

Firefox < 116 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. 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 < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Scores

CVSS v3 9.8
EPSS 0.0060
EPSS Percentile 69.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-787
Status published
Products (4)
debian/debian_linux 10.0
debian/debian_linux 11.0
debian/debian_linux 12.0
mozilla/firefox < 116.0
Published Aug 01, 2023
Tracked Since Feb 18, 2026