Vulnerability in Samba

CVE-2016-2115

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 require SMB signing within a DCERPC session over ncacn_np, which allows man-in-the-middle attackers to spoof SMB clients by modifying the client-server data stream.

EPSS: 0.102 (95.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-2115?
CVE-2016-2115 is a medium-severity vulnerability in Samba, classified under CWE-254. CVSS score: 5.9/10. Published 2016-04-25.
How severe is CVE-2016-2115?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2016-2115 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.