UpHeron
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Servers and applications

CVE-2019-14870

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented…

Severity
Medium 5.4
Published
10 Dec 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.9.17, 4.10.11, 4.11.3
Exploit chance
2.7% in the next 30 daysHigher than 85% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
SambaServers and applications · cpe:a:samba:samba
  • From 4.0.0 before 4.9.17
  • From 4.10.0 before 4.10.11
  • From 4.11.0 before 4.11.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-14870
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-14870