CVE-2025-5269

Memory safety bug fixed in Firefox ESR 128.11 and Thunderbird 128.11

CVSS 8.1 HIGHEPSS 0.4%CWE-787

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 8.1EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

27 may 2025Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 128.11 and Thunderbird 128.11.

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

Productos afectados

Mozilla · Firefox Mozilla · Thunderbird

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Referencias

https://bugzilla.mozilla.org/show_bug.cgi?id=1924108 https://lists.debian.org/debian-lts-announce/2025/05/msg00043.html https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html https://www.mozilla.org/security/advisories/mfsa2025-44/https://www.mozilla.org/security/advisories/mfsa2025-46/