What is CVE-2016-4927?

CVE-2016-4927 is a high-severity vulnerability in Juniper Junos Space, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2017-03-20.

How severe is CVE-2016-4927?

High severity. CVSS v3 base score is 8.1 out of 10.

Improper input validation in Juniper Junos Space

CVE-2016-4927

Insufficient validation of SSH keys in Junos Space before 15.2R2 allows man-in-the-middle (MITM) type of attacks while a Space device is communicating with managed devices.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2017-03-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.9th percentile), scored 2026-10-21.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.001

Affected products

Juniper Junos Space

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.securityfocus.com/bid/93540 (VDB Entry, Third Party Advisory, vdb-entry)
kb.juniper.net/InfoCenter/index (Vendor Advisory)

Frequently asked questions

What is CVE-2016-4927?: CVE-2016-4927 is a high-severity vulnerability in Juniper Junos Space, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2017-03-20.
How severe is CVE-2016-4927?: High severity. CVSS v3 base score is 8.1 out of 10.