CVE-2023-23605
Memory safety bugs fixed in Firefox 109 and Firefox ESR 102.7
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 108 and Firefox ESR 102.6. 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 < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.
| Vendor | mozilla |
| Product | firefox |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 2, 2023 |
| Last Updated | Dec 18, 2025 |
Stay Ahead of the Next One
Get instant alerts for mozilla firefox
Be the first to know when new high vulnerabilities affecting mozilla firefox are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Mozilla / Firefox
unspecified < 109
Mozilla / Firefox ESR
unspecified < 102.7
Mozilla / Thunderbird
unspecified < 102.7
References
bugzilla.mozilla.org: https://bugzilla.mozilla.org/buglist.cgi?bug_id=1764921%2C1802690%2C1806974 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2023-01/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2023-02/ mozilla.org: https://www.mozilla.org/security/advisories/mfsa2023-03/
Credits
Mozilla developers