CVE-2026-102016

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Improper Input Validation in Juniper Junos OS BGP MVPN

Publication date: 2026-10-14

Last updated on: 2026-10-16

Assigner: Juniper Networks, Inc.

Description

An Improper Validation of Specified Quantity in Input vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP MVPN peer to cause a denial of service via a BGP MVPN signaling update.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-14

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-15

EPSS Evaluated

2026-10-18

NVD

CVE-2026-102016

EUVD

EUVD-2026-101336

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1284	The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

Attack-Flow Graph

Executive Summary

This vulnerability is an Improper Validation of Specified Quantity in Input issue in Juniper Networks Junos OS and Junos OS Evolved. It occurs in the rpd process and allows a configured BGP MVPN peer to send a specially crafted BGP MVPN signaling update that causes a denial of service.

Impact Analysis

A remote attacker could exploit this flaw to disrupt network services by causing the rpd process to crash or become unresponsive, leading to a denial of service condition on affected systems.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by enabling denial of service attacks that disrupt network availability. GDPR requires maintaining data processing integrity and availability, while HIPAA mandates reliable access to protected health information. A DoS condition may violate these requirements.

Mitigation Strategies

Apply the latest Junos OS or Junos OS Evolved security patches from Juniper Networks to address the improper validation issue in the rpd process. Monitor BGP MVPN signaling updates for unusual activity and restrict BGP MVPN peer configurations to trusted sources.

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