CVE-2023-4585

Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2

High · published September 11, 2023

CVSS v3.1
8.8
EPSS
1%
Percentile
55.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00774 · 55.3th percentile
Published
2023-09-11T08:02Z
EPSS history
Timeline
  • 11 SEP 08:02Z
    Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2
    cvelistv5