---
id: CVE-2026-101985
title: >-
  A Improper Validation of Specified Quantity in Input vulnerability in the
  routing protocol daemon (rpd) of Juniper Networks Junos OS Evolved on PTX
  Series allows an unauthenticated IS-IS peer to cause a denial of service.
summary: >-
  A Improper Validation of Specified Quantity in Input vulnerability in the
  routing protocol daemon (rpd) of Juniper Networks Junos OS Evolved on PTX
  Series allows an unauthenticated IS-IS peer to cause a denial of service.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-1284
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T17:17:50.807'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101985'
references:
  - url: 'https://supportportal.juniper.net/JSA112250'
    label: sirt@juniper.net
tags:
  - nvd
ingestedAt: '2026-10-14T17:44:53.638Z'
---

## Overview

A Improper Validation of Specified Quantity in Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated IS-IS peer to cause a denial of service.

## Remediation

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