Juniper issues emergency patch for critical PTX router RCE
Juniper released an emergency patch for Junos OS Evolved to fix CVE-2026-21902, a critical RCE flaw affecting PTX routers. Juniper Networks issued an out-of-band security update for Junos OS Evolved to address a critical remote code execution vulnerability, tracked as CVE-2026-21902 (CVSS score of 9.3), impacting PTX routers. The company urges customers to apply the […]
Pierluigi Paganini
February 27, 2026

Juniper Networks issued an out-of-band security update for Junos OS Evolved to address a critical remote code execution vulnerability, tracked as CVE-2026-21902 (CVSS score of 9.3), impacting PTX routers.
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