CVE-2016-2115

high-risk
Published 2016-04-25

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.

Do I need to act?

!
25.2% chance of exploitation in next 30 days
EPSS score — higher than 75% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Vendors

66
/ 100
high-risk
Severity 18/34 · Moderate
Exploitability 15/34 · Moderate
Exposure 33/34 · Critical