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01 Record

CVE-2018-16860

A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the

HighPUBLISHEDCNA: redhat
CNA base score7.5 CVSS v3.xCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

02 Description

A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the

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
2.48% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 84.2% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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
2019-07-31 14:38Z7 YR AGO
Last updated
2024-08-05 10:32Z2 YR AGO
Reserved
2018-09-11
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-358Improperly Implemented Security Check for StandardBase
Data version
5.1
Document digest
5eb1333de2ef5057eb11a73572c7bc3355ccdb6d2e8650603eac610f2dd0b30d

05 Affected products

VendorProductVersionsPlatforms
SAMBAsamba4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8, 4.10.x up to, excluding 4.10.3—

06 References

07 Fixed in

Debian 12

  • heimdal
    Fixed in 7.5.0+dfsg-3
  • samba
    Fixed in 2:4.9.5+dfsg-4

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

Debian 13

  • heimdal
    Fixed in 7.5.0+dfsg-3
  • samba
    Fixed in 2:4.9.5+dfsg-4

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

Debian 14

  • heimdal
    Fixed in 7.5.0+dfsg-3
  • samba
    Fixed in 2:4.9.5+dfsg-4

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

Ubuntu 16.04 LTS

  • samba
    Fixed in 2:4.3.11+dfsg-0ubuntu0.16.04.20

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • heimdal
    Fixed in 7.5.0+dfsg-1ubuntu0.1
  • samba
    Fixed in 2:4.7.6+dfsg~ubuntu-0ubuntu2.10

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • heimdal
    Fixed in 1.6~git20131207+dfsg-1ubuntu1.2+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • samba
    Fixed in 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • heimdal
    Fixed in 1.7~git20150920+dfsg-4ubuntu1.16.04.1+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. 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.