High (7.5). EPSS 7.1% chance of exploitation in the next 30 days.
The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful ASN.1 memory allocation, which allows remote attackers to cause a denial of service (memory consumption and daemon crash) via crafted packets.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
7.1% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-11-01)