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Sometimes, You Can Just Feel The Security In The Design (Juniper Junos Evolved CVE-2026-21902 Pre-Auth RCE)

watchTowr LabsBy McCaulay Hudson9 min read

PatchJunos OS Evolved (PTX Series)
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Below is the opening; the full story is at watchTowr Labs.

From watchTowr Labs

On today’s ‘good news disguised as other things’ segment, we’re turning our gaze to CVE-2026-21902 - a recently disclosed “Incorrect Permission Assignment for Critical Resource” vulnerability affecting Juniper’s Junos OS Evolved platform. This vulnerability affects only Juniper’s PTX Series of devices, apparently.…

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