A buffer overflow in the SMTP response service in MailCarrier 2.51 allows the attacker to execute arbitrary code remotely via a long HELP command, a related issue to CVE-2019-11395.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
3.2% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)