CVE-2023-4057
CRITICALFirefox < 116.0 and Firefox ESR < 115.1 - Out-of-bounds Write
Title source: llmDescription
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. 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 < 115.1, and Thunderbird < 115.1.
References (4)
Core 4
Core References
Issue Tracking, Permissions Required
https://bugzilla.mozilla.org/show_bug.cgi?id=1841682
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-29/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-31/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-33/
Scores
CVSS v3
9.8
EPSS
0.0022
EPSS Percentile
43.9%
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 (2)
mozilla/firefox
< 116.0
mozilla/firefox_esr
< 115.1
Published
Aug 01, 2023
Tracked Since
Feb 18, 2026