What is CVE-2019-0067?

CVE-2019-0067 is a medium-severity vulnerability in Juniper Junos. CVSS score: 6.5/10. Published 2019-10-09.

How severe is CVE-2019-0067?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Junos

CVE-2019-0067

Receipt of a specific link-local IPv6 packet destined to the RE may cause the system to crash and restart (vmcore). By continuously sending a specially crafted IPv6 packet, an attacker can repeatedly crash the system causing a prolonged Denial of Service (DoS). This issue affects Juniper Networks Junos OS: 16.1 versions prior to 16.1R6-S2, 16.1R7; 16.2 versions prior to 16.2R2-S10; 17.1 versions prior to 17.1R3. This issue does not affect Juniper Networks Junos OS version 15.1 and prior versions.

Published 2019-10-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Juniper Junos — versions 16.1, 16.2, 17.1
Juniper Networks Junos OS — versions unspecified, 16.1, 16.2

References

kb.juniper.net/JSA10966 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-0067?: CVE-2019-0067 is a medium-severity vulnerability in Juniper Junos. CVSS score: 6.5/10. Published 2019-10-09.
How severe is CVE-2019-0067?: Medium severity. CVSS v3 base score is 6.5 out of 10.