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CVE-2026-40684

Exim

Descrição

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%Risco 0.61
Ver fonte
Publicação
2026-04-30 22:16:25
Versões afetadas
<4.99.2
Tipo
Core software
Vetor
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H