CVE-2016-1278: Juniper Junos

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Juniper Junos OS before 12.1X46-D50 on SRX Series devices reverts to "safe mode" authentication and allows root CLI logins without a password after a failed upgrade to 12.1X46, which might allow local users to gain privileges by leveraging use of the "request system software" command with the "partition" option.

Affected products

• Juniper Junos: up to and including 12.1x46

Published 2016-08-05. Last modified 2026-06-17.