HarborGuard / CVE
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CRITICALCVE-2026-2807Published Modified CNA mozilla

CVE-2026-2807: Memory safety bugs fixed in Firefox 148 and Thunderbird 148

Memory safety bugs present in Firefox 147 and Thunderbird 147. 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 148 and Thunderbird 148.

Metrics

CVSS v3.1
9.8
Severity
CRITICAL
Fixed in
148
Affected Products
2

Fix available

148
Affected packages
  • Mozilla / Firefox
    Fixed in 148
  • Mozilla / Thunderbird
    Fixed in 148
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References