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01 Record

CVE-2018-16857

Samba from version 4.9.0 and before version 4.9.3 that have AD DC configurations watching for bad passwords (to restrict brute forcing of passwords) in a window of more than 3 minutes may not watch

HighPUBLISHEDCNA: redhat
CNA base score7.4 CVSS v3.xCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

02 Description

Samba from version 4.9.0 and before version 4.9.3 that have AD DC configurations watching for bad passwords (to restrict brute forcing of passwords) in a window of more than 3 minutes may not watch

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.27% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 82.6% of scored records. A rank, not a probability.
NVD base score
5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2018-11-28 14:00Z7 YR AGO
Last updated
2024-08-05 10:32Z2 YR AGO
Reserved
2018-09-11
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.4)
CNA CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-358Improperly Implemented Security Check for StandardBase
Data version
5.1
Document digest
4e7840f96d0fa76b764db112c2d29c04149039e2564780fb5dec3d913235086a

05 Affected products

VendorProductVersionsPlatforms
[UNKNOWN]samba4.9.3—

06 References

07 Fixed in

Arch Linux

  • samba
    Fixed in 4.9.3-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • samba
    Fixed in 2:4.9.2+dfsg-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • samba
    Fixed in 2:4.9.2+dfsg-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • samba
    Fixed in 2:4.9.2+dfsg-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.