Bleepingcomputer
Critical Vulnerability in Juniper PTX Routers Allows Remote Code Execution
First seen 26 Feb 2026, 17:13 UTC
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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.
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Timeline
2026-02-25
CVE-2026-21902 published
2026-02-26
Bleepingcomputer reports on the vulnerability
2026-02-26
Juniper releases security bulletin regarding the flaw