CVE-2026-102013
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NULL Pointer Dereference in Juniper Networks Junos OS and Junos OS Evolved

Publication date: 2026-10-14

Last updated on: 2026-10-14

Assigner: Juniper Networks, Inc.

Description
A NULL Pointer Dereference vulnerability in the na-grpcd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated attacker with access to the chassis-internal network to cause a denial of service via a network message.

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Meta Information

Published
2026-10-14
Last Modified
2026-10-14
Generated
2026-10-19
AI Q&A
2026-10-15
EPSS Evaluated
2026-10-18
NVD
CVE-2026-102013
EUVD
EUVD-2026-101333

Affected Vendors & Products

Showing 17 associated CPEs
Vendor Product Version / Range
Juniper Networks Junos OS 0
Juniper Networks Junos OS 23.4
Juniper Networks Junos OS 24.2
Juniper Networks Junos OS 24.4
Juniper Networks Junos OS 25.2
Juniper Networks Junos OS 25.4
Juniper Networks Junos OS 26.2
Juniper Networks Junos OS Evolved 0
Juniper Networks Junos OS Evolved 23.4
Juniper Networks Junos OS Evolved 24.2
Juniper Networks Junos OS Evolved 24.4
Juniper Networks Junos OS Evolved 25.2
Juniper Networks Junos OS Evolved 25.4
Juniper Networks Junos OS Evolved 26.2
Juniper Networks Junos OS Evolved 23.4X100
Juniper Networks Junos OS Evolved 25.2X100
Juniper Networks Junos OS Evolved 25.4X300

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.

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Executive Summary

This is a NULL Pointer Dereference vulnerability in Juniper Networks Junos OS and Junos OS Evolved. It affects the na-grpcd process and allows an unauthenticated attacker with access to the chassis-internal network to cause a denial of service by sending a specific network message.

Detection Guidance

Detection requires monitoring for crashes or instability in the na-grpcd process on Juniper devices. Check system logs for segmentation faults or process failures in Junos OS/Junos OS Evolved. Use commands like 'show system processes extensive' or 'show log messages' to identify abnormal terminations.

Impact Analysis

The vulnerability can lead to a denial of service, causing the affected system to crash or become unresponsive. This disrupts network operations and may result in service outages for users relying on the compromised system.

Compliance Impact

This vulnerability causes a denial of service via a NULL pointer dereference in the na-grpcd process, which could disrupt network services. Such disruptions may impact data availability, potentially violating compliance requirements for GDPR (data availability) and HIPAA (system availability for protected health information).

Mitigation Strategies

Apply the latest Junos OS or Junos OS Evolved patches from Juniper Networks. Restrict access to the chassis-internal network to trusted users only. Monitor network traffic for suspicious messages targeting the na-grpcd process.

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