Security Advisories
CVEs affecting projects tracked on Release Alert, from NVD & OSV.
CVE-2026-40684
5.9
MEDIUMCVSS v3
Published
April 30, 2026
Affected
1 project
Assigned by
MITRE
Severity scale
010
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 oddity in octal printing.
GitHub