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CVE-2016-2114
The SMB1 protocol implementation in Samba 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 "server…
Medium5.9EPSS 2.7%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The SMB1 protocol implementation in Samba 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 "server signing = mandatory" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Weakness
Affected products
n/a
- affected n/a
References (25)
- SSA:2016-106-02 (opens in a new tab)vendor-advisoryx_refsource_SLACKWAREx_transferred
- RHSA-2016:0612 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-2950-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 86011 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://badlock.org/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.samba.org/samba/security/CVE-2016-2114.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2950-5 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.samba.org/samba/history/samba-4.2.10.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2016-be53260726 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- RHSA-2016:0618 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.samba.org/samba/latest_news.html#4.4.2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1035533 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- FEDORA-2016-48b3761baa (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- RHSA-2016:0614 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2016:0620 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- openSUSE-SU-2016:1106 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://bto.bluecoat.com/security-advisory/sa122 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2950-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- FEDORA-2016-383fce04e2 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- openSUSE-SU-2016:1107 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- GLSA-201612-47 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-3548 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-2950-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2950-4 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .