CVE-2018-16857 is a medium-severity vulnerability affecting Samba versions 4.9.0 through 4.9.2 configured as an Active Directory Domain Controller (AD DC). The flaw prevents the system from properly enforcing bad password policies when the lockout window exceeds three minutes, potentially allowing brute-force attacks. The CVSS score is 5.9 (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N), indicating a network-exploitable vulnerability with high impact on integrity but requiring high attack complexity. There is no known public exploit code, active exploitation, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.9.0, < 4.9.3CPE matchmatch criteria | cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.