UpHeron
All vulnerabilities

Servers and applications

CVE-2016-0771

The internal DNS server in Samba 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4, when an AD DC is configured, allows remote authenticated users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory by uploading a crafted DNS TXT record.

Severity
Medium 5.9
Published
13 Mar 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
3% in the next 30 daysHigher than 87% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Memory buffer errors (CWE-119)
Attack
Over the network · Only under certain conditions · Needs a user account · No user action needed
Attacker can
Read some data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
SambaServers and applications · cpe:a:samba:samba
  • Version 4.4.0-rc3
  • Version 4.4.0-rc2
  • Version 4.4.0-rc1
  • Version 4.3.5
All 69 release lines
  • Version 4.0.0
  • Version 4.0.1
  • Version 4.0.2
  • Version 4.0.3
  • Version 4.0.4
  • Version 4.0.5
  • Version 4.0.6
  • Version 4.0.7
  • Version 4.0.8
  • Version 4.0.9
  • Version 4.0.10
  • Version 4.0.11
  • Version 4.0.12
  • Version 4.0.13
  • Version 4.0.14
  • Version 4.0.15
  • Version 4.0.16
  • Version 4.0.17
  • Version 4.0.18
  • Version 4.0.19
  • Version 4.0.20
  • Version 4.0.21
  • Version 4.0.22
  • Version 4.0.23
  • Version 4.0.24
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.1.3
  • Version 4.1.4
  • Version 4.1.5
  • Version 4.1.6
  • Version 4.1.7
  • Version 4.1.8
  • Version 4.1.9
  • Version 4.1.10
  • Version 4.1.11
  • Version 4.1.12
  • Version 4.1.13
  • Version 4.1.14
  • Version 4.1.15
  • Version 4.1.16
  • Version 4.1.17
  • Version 4.1.18
  • Version 4.1.19
  • Version 4.1.20
  • Version 4.1.21
  • Version 4.1.22
  • Version 4.2.0-rc1
  • Version 4.2.0-rc2
  • Version 4.2.0-rc3
  • Version 4.2.0-rc4
  • Version 4.2.1
  • Version 4.2.2
  • Version 4.2.3
  • Version 4.2.4
  • Version 4.2.5
  • Version 4.2.6
  • Version 4.2.7
  • Version 4.2.8
  • Version 4.3.0
  • Version 4.3.1
  • Version 4.3.2
  • Version 4.3.3
  • Version 4.3.4
  • Version 4.3.5
  • Version 4.4.0-rc1
  • Version 4.4.0-rc2
  • Version 4.4.0-rc3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-0771
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-0771