CVE-2016-4925: Juniper Junose

High severity, CVSS 7.5. EPSS: 2.7% chance of exploitation in the next 30 days.

Receipt of a specifically malformed IPv6 packet processed by the router may trigger a line card reset: processor exception 0x68616c74 (halt) in task: scheduler. The line card will reboot and recover without user interaction. However, additional specifically malformed packets may cause follow-on line card resets and lead to an extended service outage. This issue only affects E Series routers with IPv6 licensed and enabled. Routers not configured to process IPv6 traffic are unaffected by this vulnerability. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. No other Juniper Networks products or platforms are affected by this issue.

Affected products

• Juniper Junose: from 10.3, up to and including 10.3.3; from 12.3.0, up to and including 12.3.3; from 13.3.0, up to and including 13.3.3; from 14.3.0, up to and including 14.3.1

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