---
id: CVE-2026-101942
title: >-
  An Improper Handling of Length Parameter Inconsistency vulnerability in the
  routing protocol daemon (rpd) process of Juniper Networks Junos OS and Junos
  OS Evolved allows an unauthenticated network-based attacker to cause a denial
  of ser…
summary: >-
  An Improper Handling of Length Parameter Inconsistency vulnerability in the
  routing protocol daemon (rpd) process of Juniper Networks Junos OS and Junos
  OS Evolved allows an unauthenticated network-based attacker to cause a denial
  of ser…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-130
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T17:17:46.930'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101942'
references:
  - url: 'https://supportportal.juniper.net/JSA112187'
    label: sirt@juniper.net
tags:
  - nvd
ingestedAt: '2026-10-14T17:44:53.629Z'
---

## Overview

An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker to cause a denial of service via a malformed EVPN Type-3 or Type-4 route received from a configured EVPN peer and processed during re-advertisement.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.