CVE-2025-5272

Memory safety bugs fixed in Firefox 139 and Thunderbird 139

CVSS 7.3 HIGHEPSS 0.3%CWE-787

Memory safety bugs present in Firefox 138 and Thunderbird 138. 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 139 and Thunderbird 139.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Produtos afetados

Mozilla · Firefox Mozilla · Thunderbird

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Referências

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1726254%2C1742738%2C1960121 https://www.mozilla.org/security/advisories/mfsa2025-42/https://www.mozilla.org/security/advisories/mfsa2025-45/