Juniper Networks PTX Routers Affected by Critical Vulnerability

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Critical Vulnerability in Juniper PTX Routers Allows Remote Code Execution A critical vulnerability identified as CVE-2026-21902 affects the Junos OS Evolved on PTX Series routers, enabling unauthenticated attackers to execute code with root privileges. These routers are widely used by internet service providers and cloud applications, making this flaw particularly significant for network security. The vulnerability was published on February 25, 2026. 15 sources 66