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High · 8.8 CVE-2026-101978 EUVD-2026-101427GHSA-pr89-h5hv-gj8j

Junos OS Evolved: PTX Series: An attacker controlled gRPC response causes root-level compromise when zero-touch provisioning is used

Published Oct 14, 2026 · Updated Oct 16, 2026 · Assigned by juniper

Vendor: Juniper Networks Product: Junos OS Evolved Category: Network devices

Description

An OS Command Injection vulnerability in the bootzd zero-touch provisioning daemon of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated attacker on the management LAN to execute commands as root via a crafted gRPC response.

Affected products

VendorProductAffectedFixed
Juniper Networks Junos OS Evolved 24.4 – < 24.4R2-S5-EVO, 25.2 – < 25.2R2-S2-EVO, 25.4 – < 25.4R1-S3-EVO, 26.2 – < 26.2R1-S2-EVO, 23.4X100, 25.2X100 – < 25.2X100-D35-EVO, 25.4X300 – < 25.4X300-D40-EVO 24.4R2-S5-EVO

References