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CVE-2026-102059

8.8, high

Juniper Networks Junos OS OS Command Injection Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
4% higher than 90.1% of scored CVEs
Exploitation
No public evidence
Published
14 Oct 20263 days ago

Description

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the phone-home daemon (phcd) of Juniper Networks Junos OS and Junos OS Evolved on EX Series, SRX Series, and QFX Series allows an adjacent unauthenticated attacker to execute arbitrary commands with root privileges via a rogue DHCP server.

Details

Vendor
Juniper Networks
Product
Junos OS
Weakness
CWE-78 (opens in a new tab)
Status
Awaiting analysis
Updated
15 Oct 2026
Assigner
sirt@juniper.net

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

References 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Juniper Networks CVEs

Every Juniper Networks CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-101950 Juniper Networks Junos OS Heap-based Buffer Overflow Vulnerability EPSS 0.5% 9.8, critical
  • CVE-2026-101990 Juniper Networks Junos OS Stack-based Buffer Overflow Vulnerability EPSS 0.6% 9.8, critical
  • CVE-2026-102031 Juniper Networks Junos OS Evolved OS Command Injection Vulnerability EPSS 2% 9.8, critical
  • CVE-2026-102175 Juniper Networks Junos OS Heap-based Buffer Overflow Vulnerability EPSS 0.7% 9.8, critical
  • CVE-2026-102178 Juniper Networks Junos OS Stack-based Buffer Overflow Vulnerability EPSS 0.5% 9.8, critical
  • CVE-2026-101954 Juniper Networks Junos OS Improper Authentication Vulnerability EPSS 0.5% 9.8, critical
  • CVE-2026-101982 Juniper Networks Junos OS Stack-based Buffer Overflow Vulnerability EPSS 0.6% 9.8, critical
  • CVE-2026-101927 Juniper Networks Junos OS Heap-based Buffer Overflow Vulnerability EPSS 0.2% 7.8, high

Beyond this page

Is CVE-2026-102059 in your network?

This page tells you how dangerous CVE-2026-102059 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Detect it if it's exploited

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.