CVE-2026-102019

Awaiting Analysis Awaiting Analysis - Queue

Improper Input Validation in Juniper Junos OS RIPv2 DoS

Publication date: 2026-10-14

Last updated on: 2026-10-14

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 Evolved allows an unauthenticated adjacent attacker to cause a denial-of-service condition via a malformed RIPv2 message.

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-102019

EUVD

EUVD-2026-101344

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 the rpd process of Juniper Networks Junos OS and Junos Evolved. An unauthenticated adjacent attacker can exploit it by sending a malformed RIPv2 message, causing a denial-of-service condition.

Impact Analysis

The vulnerability allows an attacker to disrupt network services by crashing the rpd process, leading to downtime and loss of connectivity for affected systems running Junos OS or Junos Evolved.

Compliance Impact

This vulnerability causes a denial-of-service condition via malformed RIPv2 messages, which could disrupt network services. Such disruptions may impact compliance with standards requiring availability of systems, such as GDPR (data processing integrity) or HIPAA (system availability for protected health information).

Mitigation Strategies

Apply the latest security patches from Juniper Networks for Junos OS and Junos Evolved to address the improper validation in the rpd process handling RIPv2 messages.

Hi! I’m here to help you understand CVE-2026-102019. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...