CVE-2023-29535
MEDIUMFirefox < 112.0 - Use-After-Free via Weak Map Access
Title source: llmDescription
Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced. This resulted in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.
References (4)
Core 4
Core References
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1820543
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-13/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-14/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-15/
Scores
CVSS v3
6.5
EPSS
0.0035
EPSS Percentile
57.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
Status
published
Products (4)
mozilla/firefox
< 112.0 (2 CPE variants)
mozilla/firefox_esr
< 102.10
mozilla/focus
< 112.0
mozilla/thunderbird
< 102.10
Published
Jun 02, 2023
Tracked Since
Feb 18, 2026