Memory safety bugs present in Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited t…
Critical CVSS 9.8
Summary
Memory safety bugs present in Firefox 148 and Thunderbird 148. 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 was fixed in Firefox 149 and Thunderbird 149.
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1944033%2C1997282%2C2009213%2C2011412%2C2021925%2C2022034 Broken Link
- https://www.mozilla.org/security/advisories/mfsa2026-20/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-23/ Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-4729
- https://bugzilla.redhat.com/show_bug.cgi?id=2450745
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4729.json
Timeline
- nvd_ingest NVD