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Vulnerability record · CVE-2016-3698 · published 13 June 2016

CVE-2016-3698: Redhat enterprise linux desktop improper access control vulnerability

Redhat · Enterprise Linux Desktop

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.

8.1 CVSS 3.0 High EPSS 3.8% · top 10.3% CWE-284 · Improper access control
8.1CVSS 3.0 base score, v2 6.8
3.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
14References
17 Jun 2026Last modified by 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.

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

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2016/dsa-3581
http://www.openwall.com/lists/oss-security/2016/05/17/9
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.ubuntu.com/usn/USN-2980-1
https://github.com/jpirko/libndp/commit/2af9a55b38b55abbf05fd116ec097d4029115839
https://github.com/jpirko/libndp/commit/a4892df306e0532487f1634ba6d4c6d4bb381c7f
https://rhn.redhat.com/errata/RHSA-2016-1086.html
http://www.debian.org/security/2016/dsa-3581
http://www.openwall.com/lists/oss-security/2016/05/17/9
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.ubuntu.com/usn/USN-2980-1
https://github.com/jpirko/libndp/commit/2af9a55b38b55abbf05fd116ec097d4029115839
https://github.com/jpirko/libndp/commit/a4892df306e0532487f1634ba6d4c6d4bb381c7f
https://rhn.redhat.com/errata/RHSA-2016-1086.html

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Source: NIST National Vulnerability Database (record CVE-2016-3698), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.