CVE-2017-10620: Juniper Junos

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Juniper Networks Junos OS on SRX series devices do not verify the HTTPS server certificate before downloading anti-virus updates. This may allow a man-in-the-middle attacker to inject bogus signatures to cause service disruptions or make the device not detect certain types of attacks. Affected Junos OS releases are: 12.1X46 prior to 12.1X46-D71; 12.3X48 prior to 12.3X48-D55; 15.1X49 prior to 15.1X49-D110;

Affected products

• Juniper Junos: version 12.1x46 only; version 12.3x48 only; version 15.1x49 only

Published 2017-10-13. Last modified 2026-06-17.