CVE-2026-101971
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Allocation of Resources Without Limits or Throttling in Juniper Networks Junos OS OSPFv3

Publication date: 2026-10-14

Last updated on: 2026-10-14

Assigner: Juniper Networks, Inc.

Description
An Allocation of Resources Without Limits or Throttling vulnerability in rpd, the routing protocol daemon, of Juniper Networks Junos OS and Junos OS Evolved platforms allows an unauthenticated adjacent attacker to cause a denial of service and heap memory corruption via OSPFv3 messages on an enabled broadcast interface.

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Meta Information

Published
2026-10-14
Last Modified
2026-10-14
Generated
2026-11-08
AI Q&A
2026-10-15
EPSS Evaluated
2026-11-07
NVD
CVE-2026-101971
EUVD
EUVD-2026-101328

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

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Executive Summary

This vulnerability is an Allocation of Resources Without Limits or Throttling issue in Juniper Networks Junos OS and Junos OS Evolved platforms. It affects the routing protocol daemon (rpd) and allows an unauthenticated adjacent attacker to cause a denial of service and heap memory corruption by sending OSPFv3 messages on a broadcast interface.

Detection Guidance

This vulnerability can be detected by monitoring for unusual OSPFv3 message traffic on enabled broadcast interfaces. Check for excessive memory usage or crashes in the rpd process. Use commands like 'show system processes extensive' to monitor rpd memory usage and 'show ospf neighbor' to verify OSPFv3 adjacencies.

Impact Analysis

An attacker could exploit this to disrupt network services by causing a denial of service or corrupting memory, potentially leading to system crashes or instability in routing operations.

Compliance Impact

This vulnerability causes denial of service and memory corruption in Juniper Junos OS and Junos OS Evolved platforms via OSPFv3 messages. It may impact compliance with GDPR or HIPAA by disrupting network availability and integrity, potentially leading to unauthorized access or data processing interruptions.

Mitigation Strategies

Apply the latest Junos OS or Junos OS Evolved patches from Juniper Networks to address the OSPFv3 message handling issue. Disable OSPFv3 on broadcast interfaces if not required, or restrict adjacencies to trusted sources.

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