CVE-2023-4585

HIGH

Firefox < 117.0 and Firefox ESR < 115.2 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. 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 < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

References (4)

Core 4

Scores

CVSS v3 8.8
EPSS 0.0020
EPSS Percentile 42.1%
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 < 117.0
mozilla/firefox_esr < 115.2
mozilla/thunderbird < 115.2
Published Sep 11, 2023
Tracked Since Feb 18, 2026