Is CVE-2016-3698 in the CISA KEV catalog?

No. CVE-2016-3698 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-3698?

CVE-2016-3698 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2016-3698?

CVE-2016-3698 has an EPSS score of 3.81% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-3698?

Upgrade libndp on debian 11 to 1.6-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2016-3698

HIGHEPSS 89th pctl

8.1

CVSS v3

NVD

Description

libndp before 1.6, as used in NetworkManager, does not properly validate the origin of Neighbor Discovery Protocol (NDP) messages, which allows remote attackers to conduct man-in-the-middle attacks or cause a denial of service (network connectivity disruption) by advertising a node as a router from a non-local network.

CWE-284Improper Access Control

How to fix

Remediation Available

libndpDebian

Fixed in:1.6-1CVE-2016-3698

libndpUbuntu

Fixed in:1.4-2ubuntu0.16.04.1USN-2980-1

libndp0Ubuntu

Fixed in:1.4-2ubuntu0.16.04.1USN-2980-1

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 RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.81%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Other references7

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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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.