What is CVE-2020-1623?

CVE-2020-1623 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2020-04-08.

How severe is CVE-2020-1623?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in Juniper Junos OS Evolved

CVE-2020-1623

A local, authenticated user with shell can view sensitive configuration information via the ev.ops configuration file. This issue affects all versions of Junos OS Evolved prior to 19.2R1.

Published 2020-04-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.1th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Juniper Junos OS Evolved
Juniper Networks Junos OS Evolved — versions unspecified

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

kb.juniper.net/JSA11003 (Vendor Advisory)

Frequently asked questions

What is CVE-2020-1623?: CVE-2020-1623 is a medium-severity vulnerability in Juniper Junos OS Evolved, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.5/10. Published 2020-04-08.
How severe is CVE-2020-1623?: Medium severity. CVSS v3 base score is 5.5 out of 10.