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CVE-2025-0247

CRITICAL CVSS: 9.8 Published: 2025-01-07 Modified: 2026-06-17

Description

Memory safety bugs present in Firefox 133 and Thunderbird 133. 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 134 and Thunderbird 134.

Affected Platforms

Mozilla FirefoxMozilla Thunderbird

Weakness Type

CWE-787

References