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TI-2018-12067 Aliases CVE-2018-16857GHSA-qhgj-r7g7-whqw

Samba from version 4.9.0 and before version 4.9.3 that have AD DC configurations watching…

Priority LOW 37CWE-358Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA.

Summary

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 for bad passwords at all. The primary risk from this issue is with regards to domains that have been upgraded from Samba 4.8 and earlier. In these cases the manual testing done to confirm an organisation's password policies apply as expected may not have been re-done after the upgrade.

Why it matters now

EPSS 0.02273 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
[UNKNOWN]samba4.9.3—No fix listedCNA
  • samba Vendor[UNKNOWN] Affected 4.9.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*4.9.0 to before 4.9.3VulnerableSamba
  • cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.9.0 to before 4.9.3 Vulnerable ·Samba

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 6 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Storage 3
  • Red Hat Virtualization 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-16857
  2. 2026-10-03 Alias added: GHSA-qhgj-r7g7-whqw

References

Patch 1

Advisory 3

  • TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2017-05139 Code injection in samba KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-00210 The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x… CVSS 2.0HIGH 10.0
  • TI-2003-00081 Buffer overflow in the SMB/CIFS packet fragment re-assembly code for SMB daemon (smbd) in… CVSS 2.0HIGH 10.0
  • TI-2003-00185 Buffer overflow in the call_trans2open function in trans2.c for Samba 2.2.x before… CVSS 2.0HIGH 10.0
  • TI-2007-02362 Multiple heap-based buffer overflows in the NDR parsing in smbd in Samba 3.0.0 through… CVSS 2.0HIGH 10.0
See all 215 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences