UpHeron
All vulnerabilities

Servers and applications

CVE-2016-2112

The bundled LDAP client library in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "client ldap sasl wrapping" setting, which allows man-in-the-middle attackers to perform LDAP protocol-downgrade attacks by modifying the client-server data stream.

Severity
Medium 5.9
Published
25 Apr 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
9.4% in the next 30 daysHigher than 95% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-254
Attack
Over the network · Only under certain conditions · No login needed · No user action needed
Attacker can
Change data
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Sources
NVD

Affected software

SoftwareAffected versions
SambaServers and applications · cpe:a:samba:samba
  • Version 4.4.0
  • Version 4.3.6
  • Version 4.3.5
  • Version 4.3.4
All 248 release lines
  • Version 3.0.0
  • Version 3.0.1
  • Version 3.0.2-a
  • Version 3.0.2
  • Version 3.0.2a
  • Version 3.0.3
  • Version 3.0.4-rc1
  • Version 3.0.4
  • Version 3.0.5
  • Version 3.0.6
  • Version 3.0.7
  • Version 3.0.8
  • Version 3.0.9
  • Version 3.0.10
  • Version 3.0.11
  • Version 3.0.12
  • Version 3.0.13
  • Version 3.0.14-a
  • Version 3.0.14
  • Version 3.0.14a
  • Version 3.0.15
  • Version 3.0.16
  • Version 3.0.17
  • Version 3.0.18
  • Version 3.0.19
  • Version 3.0.20-a
  • Version 3.0.20-b
  • Version 3.0.20
  • Version 3.0.20a
  • Version 3.0.20b
  • Version 3.0.21-a
  • Version 3.0.21-b
  • Version 3.0.21-c
  • Version 3.0.21
  • Version 3.0.21a
  • Version 3.0.21b
  • Version 3.0.21c
  • Version 3.0.22
  • Version 3.0.23-a
  • Version 3.0.23-b
  • Version 3.0.23-c
  • Version 3.0.23
  • Version 3.0.23a
  • Version 3.0.23b
  • Version 3.0.23c
  • Version 3.0.23-d
  • Version 3.0.23d
  • Version 3.0.24
  • Version 3.0.25-a
  • Version 3.0.25-b
  • Version 3.0.25-pre1
  • Version 3.0.25-pre2
  • Version 3.0.25-c
  • Version 3.0.25-rc1
  • Version 3.0.25-rc2
  • Version 3.0.25-rc3
  • Version 3.0.25
  • Version 3.0.25a
  • Version 3.0.25b
  • Version 3.0.25c
  • Version 3.0.26-a
  • Version 3.0.26
  • Version 3.0.26a
  • Version 3.0.27-a
  • Version 3.0.27
  • Version 3.0.28-a
  • Version 3.0.28
  • Version 3.0.29
  • Version 3.0.30
  • Version 3.0.31
  • Version 3.0.32
  • Version 3.0.33
  • Version 3.0.34
  • Version 3.0.35
  • Version 3.0.36
  • Version 3.0.37
  • Version 3.2.0
  • Version 3.2.1
  • Version 3.2.2
  • Version 3.2.3
  • Version 3.2.4
  • Version 3.2.5
  • Version 3.2.6
  • Version 3.2.7
  • Version 3.2.8
  • Version 3.2.9
  • Version 3.2.10
  • Version 3.2.11
  • Version 3.2.12
  • Version 3.2.13
  • Version 3.2.14
  • Version 3.2.15
  • Version 3.3.0
  • Version 3.3.1
  • Version 3.3.2
  • Version 3.3.3
  • Version 3.3.4
  • Version 3.3.5
  • Version 3.3.6
  • Version 3.3.7
  • Version 3.3.8
  • Version 3.3.9
  • Version 3.3.10
  • Version 3.3.11
  • Version 3.3.12
  • Version 3.3.13
  • Version 3.3.14
  • Version 3.3.15
  • Version 3.3.16
  • Version 3.4.0
  • Version 3.4.1
  • Version 3.4.2
  • Version 3.4.3
  • Version 3.4.4
  • Version 3.4.5
  • Version 3.4.6
  • Version 3.4.7
  • Version 3.4.8
  • Version 3.4.9
  • Version 3.4.10
  • Version 3.4.11
  • Version 3.4.12
  • Version 3.4.13
  • Version 3.4.14
  • Version 3.4.15
  • Version 3.4.16
  • Version 3.4.17
  • Version 3.5.0
  • Version 3.5.1
  • Version 3.5.2
  • Version 3.5.3
  • Version 3.5.4
  • Version 3.5.5
  • Version 3.5.6
  • Version 3.5.7
  • Version 3.5.8
  • Version 3.5.9
  • Version 3.5.10
  • Version 3.5.11
  • Version 3.5.12
  • Version 3.5.13
  • Version 3.5.14
  • Version 3.5.15
  • Version 3.5.16
  • Version 3.5.17
  • Version 3.5.18
  • Version 3.5.19
  • Version 3.5.20
  • Version 3.5.21
  • Version 3.5.22
  • Version 3.6.0
  • Version 3.6.1
  • Version 3.6.2
  • Version 3.6.3
  • Version 3.6.4
  • Version 3.6.5
  • Version 3.6.6
  • Version 3.6.7
  • Version 3.6.8
  • Version 3.6.9
  • Version 3.6.10
  • Version 3.6.11
  • Version 3.6.12
  • Version 3.6.13
  • Version 3.6.14
  • Version 3.6.15
  • Version 3.6.16
  • Version 3.6.17
  • Version 3.6.18
  • Version 3.6.19
  • Version 3.6.20
  • Version 3.6.21
  • Version 3.6.22
  • Version 3.6.23
  • Version 3.6.24
  • Version 3.6.25
  • 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 4.0.25
  • Version 4.0.26
  • 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 4.1.23
  • 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 4.2.9
  • 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 4.3.6
  • Version 4.4.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-2112
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-2112