Is CVE-2016-0771 in the CISA KEV catalog?

No. CVE-2016-0771 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-0771?

CVE-2016-0771 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2016-0771?

CVE-2016-0771 has an EPSS score of 2.76% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-0771?

Upgrade samba on debian 11 to 2:4.3.6+dfsg-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2016-0771

MEDIUMEPSS 85th pctl

5.9

CVSS v3

NVD

Description

The internal DNS server in Samba 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4, when an AD DC is configured, allows remote authenticated users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory by uploading a crafted DNS TXT record.

CWE-119Buffer Overflow

How to fix

Remediation Available

sambaDebian

Fixed in:2:4.3.6+dfsg-1CVE-2016-0771

sambaUbuntu

Fixed in:2:4.1.6+dfsg-1ubuntu2.14.04.13USN-2922-1

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

2.76%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Vendor Advisory1

samba.org

Other references7

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.