UpHeron
All vulnerabilities

Servers and applications

CVE-2018-16851

Samba from version 4.0.0 and before versions 4.7.12, 4.8.7, 4.9.3 is vulnerable to a denial of service. During the processing of an LDAP search before Samba's AD DC returns the LDAP entries to the client, the entries are cached in a single memory object with a maximum size of 256MB. When this size is reached, the Samba process providing the LDAP service will follow the NULL pointer, terminating…

Severity
Medium 6.5
Published
28 Nov 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.7.12, 4.8.7, 4.9.3
Exploit chance
3.3% in the next 30 daysHigher than 88% 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 4.7.12
  • From 4.8.0 before 4.8.7
  • From 4.9.0 before 4.9.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-16851
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-16851