CVE-2026-102071
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Reachable Assertion in Juniper Networks Junos OS RPD

Publication date: 2026-10-14

Last updated on: 2026-10-14

Assigner: Juniper Networks, Inc.

Description
A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via a specific RSVP packet.

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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-2026-102071
EUVD
EUVD-2026-101472

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-617 The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

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Executive Summary

This vulnerability is a Reachable Assertion issue in Juniper Networks Junos OS and Junos OS Evolved routing protocol daemon (rpd). It allows an unauthenticated adjacent attacker to cause a denial of service by sending a specific RSVP packet.

Detection Guidance

This vulnerability can be detected by monitoring for RSVP packet anomalies in Juniper Junos OS and Junos OS Evolved systems. Check for crashes or reboots in the routing protocol daemon (rpd) after receiving specific RSVP packets. Use commands like 'show system processes extensive' to monitor rpd status and 'show log messages' to look for assertion failures or crashes.

Impact Analysis

An attacker could exploit this to disrupt network services by causing the routing protocol daemon to crash, leading to service outages or degraded performance in affected Juniper devices.

Compliance Impact

The vulnerability causes a denial of service via a specific RSVP packet, which could disrupt network services. This may impact compliance with standards like GDPR or HIPAA by compromising availability of critical systems, potentially leading to data processing interruptions or breaches of service level agreements.

Mitigation Strategies

Apply the latest Junos OS or Junos OS Evolved security patches from Juniper Networks to address the Reachable Assertion vulnerability in the routing protocol daemon (rpd).

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