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cyberMEDIUM2026-04-30 22:16 UTC

CVE-2026-40684 - Exim DNS Record Processing Denial of Service

CVE ID :CVE-2026-40684 Published : April 30, 2026, 10:16 p.m. | 1 hour, 45 minutes ago Description :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 oddi

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