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CVE-2026-40684

Exim

Descripción

In Exim before 4.99.2, on systems using musl libc (not glibc), an attacker can crash the connection instance when malformed DNS data is present in PTR records. This is caused by a dn_expand oddity in octal printing.

CVSS 5.9EPSS 0.362%Riesgo 0.61
Ver fuente
Publicación
2026-04-30 22:16:25
Versiones afectadas
<4.99.2
Tipo
Core software
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H