All vulnerabilities

Servers and applications

CVE-2017-14746

Use-after-free vulnerability in Samba 4.x before 4.7.3 allows remote attackers to execute arbitrary code via a crafted SMB1 request.

Severity
Critical 9.8
Published
27 Nov 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.5.0, 4.5.15, 4.6.11, 4.7.3
Exploit chance
9.9% in the next 30 daysHigher than 95% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Use after free (CWE-416)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
SambaServers and applications · cpe:a:samba:samba
  • From 4.0.0 before 4.5.0
  • From 4.5.0 before 4.5.15
  • From 4.6.0 before 4.6.11
  • From 4.7.0 before 4.7.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-14746
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-14746