PT-2026-27427
CVE-2026-4729
·
Published
2026-03-12
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Updated
2026-07-25
Description by
CVSS 2.0
10
HighMetricsAV:N/AC:L/Au:N/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 149
Thunderbird versions prior to 149
Description
Memory safety issues exist in Firefox 148 and Thunderbird 148. These bugs demonstrate evidence of memory corruption, and it is presumed that, with sufficient effort, they could potentially be exploited to execute arbitrary code.
Recommendations
Update Firefox to version 149 or later.
Update Thunderbird to version 149 or later.
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