Description
Memory safety bugs present in Firefox ESR 102.7. 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 Thunderbird < 102.8 and Firefox ESR < 102.8.
References (3)
Core 3
Core References
Broken Link, Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1544127%2C1762368
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-06/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-07/
Scores
CVSS v3
8.8
EPSS
0.0014
EPSS Percentile
34.4%
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 (2)
mozilla/firefox_esr
< 102.8
mozilla/thunderbird
< 102.8
Published
Jun 02, 2023
Tracked Since
Feb 18, 2026