CVE-2026-21901 Junos OS and Junos OS Evolved: Configuration of a specific SSH option results in mgd crash

A NULL Pointer Dereference vulnerability in the management daemon mgd of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker setting or deactivating a specific SSH configuration parameter to create a Denial of Service DoS. A local high-privileged user configuri...

CVE-2022-22227

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine PFE of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated network-based attacker to cause a partial Denial of Service DoS. On receipt of specific IPv6 transit traffic,...

CVE-2021-31356 Junos OS Evolved: Multiple shell-injection vulnerabilities in EVO UI wrapper scripts

A command injection vulnerability in command processing on Juniper Networks Junos OS Evolved allows an attacker with authenticated CLI access to be able to bypass configured access protections to execute arbitrary shell commands within the context of the current user. The vulnerability allows an...