OS Command Injection in Junos OS Evolved by Juniper Networks
CVE-2026-101978

8.7HIGH

Key Information:

Vendor

Juniper Networks
Status
Junos Os Evolved
Vendor
CVE Published:
14 October 2026

Badges

👾 Exploit Exists

What is CVE-2026-101978?

An OS Command Injection vulnerability exists in the bootzd zero-touch provisioning daemon of Juniper Networks' Junos OS Evolved. This flaw allows an unauthenticated attacker on the management LAN to exploit crafted gRPC responses, executing commands as root on affected PTX Series devices. Such vulnerabilities can lead to unauthorized access and execution of malicious commands, posing a serious risk to network security.

Affected Version(s)

Junos OS Evolved PTX Series 24.4 < 24.4R2-S5-EVO

Junos OS Evolved PTX Series 25.2 < 25.2R2-S2-EVO

Junos OS Evolved PTX Series 25.4 < 25.4R1-S3-EVO

References

https://supportportal.juniper.net/JSA112250
vendor-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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