CVE-2016-3698

high

Published 2016-06-13 · Modified 2026-05-06

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CVSS v3

8.1

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.1

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.

Predictions

Exploit likelihood

88%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Red Hat Affected 1 release

Version	Status	Fixed in
7.0	Affected	—

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Ubuntu Affected 2 releases

Version	Status	Fixed in
16.04	Affected	—
15.10	Affected	—

Debian Mixed 6 releases

Version	Status	Fixed in
trixie	Fixed	`1.6-1`
sid	Fixed	`1.6-1`
forky	Fixed	`1.6-1`
bullseye	Fixed	`1.6-1`
bookworm	Fixed	`1.6-1`
8.0	Affected	—

Application impact

Vendor	Product	Versions	Fixed
libndp	libndp	`{"endIncluding":"1.5"}`

References

CWEs

CWE-284

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.