Is CVE-2016-2115 in the CISA KEV catalog?

No. CVE-2016-2115 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-2115?

CVE-2016-2115 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2016-2115?

CVE-2016-2115 has an EPSS score of 10.23% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-2115?

Upgrade samba on debian 11 to 2:4.3.7+dfsg-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2016-2115

MEDIUMEPSS 95th pctl

5.9

CVSS v3

NVD

Description

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.

CWE-254

How to fix

Remediation Available

sambaDebian

Fixed in:2:4.3.7+dfsg-1CVE-2016-2115

sambaUbuntu

Fixed in:2:4.3.8+dfsg-0ubuntu0.14.04.2USN-2950-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

10.23%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

Related Vulnerabilities

Other CWE-254 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-0161	Medium	6.5	69%	-	-
CVE-2016-2296	Critical	9.4	64%	-	-
CVE-2015-1793	Medium	6.5	62%	-	Fix
CVE-2016-2118	High	7.5	37%	-	Fix
CVE-2016-3238	High	8.1	35%	-	-
CVE-2016-3198	Medium	6.5	32%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.