PT-2026-21726 · Mozilla · Firefox+3
Andrew Mccreight
+1
·
Published
2026-01-01
·
Updated
2026-03-18
·
CVE-2026-2793
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 148
Firefox ESR versions 115.32 through 115.32
Firefox ESR versions 140.7 through 140.7
Thunderbird versions prior to 148
Thunderbird ESR versions 140.7 through 140.7
Description
The software contains memory safety bugs, some of which demonstrate evidence of memory corruption. It is presumed that, with sufficient effort, these bugs could potentially be exploited to execute arbitrary code.
Recommendations
Update Firefox to version 148 or later.
Update Firefox ESR to version 115.33 or later.
Update Firefox ESR to version 140.8 or later.
Update Thunderbird to version 148 or later.
Update Thunderbird ESR to version 140.8 or later.
Fix
Memory Corruption
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Weakness Enumeration
Related Identifiers
Affected Products
Firefox
Firefox Esr
Thunderbird
Thunderbird Esr