---
title: "CVE-2026-101978: Juniper Networks Junos OS Evolved - OS Command Injection"
description: "Juniper Networks Junos OS Evolved on PTX Series contains an OS command injection caused by crafted gRPC response in bootzd zero-touch provisioning daemon, letting unauthenticated attackers on management LAN execute commands as root."
url: https://panop.io/threat-heartbeat/CVE-2026-101978/
---

# CVE-2026-101978 Juniper Networks Junos OS Evolved - OS Command Injection

Juniper Networks Junos OS Evolved on PTX Series contains an OS command injection caused by crafted gRPC response in bootzd zero-touch provisioning daemon, letting unauthenticated attackers on management LAN execute commands as root.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-101978)

## Details

Type

OS Command Injection

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-78](https://cwe.mitre.org/data/definitions/78.html)

## Vendor fix

Update to the latest version of Junos OS Evolved on PTX Series.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-101978](https://nvd.nist.gov/vuln/detail/CVE-2026-101978)
- [https://supportportal.juniper.net/JSA112250](https://supportportal.juniper.net/JSA112250)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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