What is CVE-2019-0059?

CVE-2019-0059 is a high-severity vulnerability in Juniper Junos, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2019-10-09.

How severe is CVE-2019-0059?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Juniper Junos

CVE-2019-0059

A memory leak vulnerability in the of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) to the device by sending specific commands from a peered BGP host and having those BGP states delivered to the vulnerable device. This issue affects: Juniper Networks Junos OS: 18.1 versions prior to 18.1R2-S4, 18.1R3-S1; 18.1X75 all versions. Versions before 18.1R1 are not affected.

Vulnerability class: DoS (Denial of Service)

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

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Juniper Junos — versions 18.1, 18.1x75
Juniper Networks Junos OS — versions 18.1X75 all versions, 18.2X75-D5, 18.1

Weakness classification (CWE)

References

kb.juniper.net/JSA10957 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-0059?: CVE-2019-0059 is a high-severity vulnerability in Juniper Junos, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2019-10-09.
How severe is CVE-2019-0059?: High severity. CVSS v3 base score is 7.5 out of 10.