---
id: CVE-2026-101974
title: >-
  An Improper Validation of Specified Quantity in Input vulnerability in rpd of
  Juniper Networks Junos OS and Junos OS Evolved allows an adjacent OSPF peer to
  disclose rpd memory or cause a rpd crash via a malformed OSPF packets.
summary: >-
  An Improper Validation of Specified Quantity in Input vulnerability in rpd of
  Juniper Networks Junos OS and Junos OS Evolved allows an adjacent OSPF peer to
  disclose rpd memory or cause a rpd crash via a malformed OSPF packets.
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'
vendor: Juniper Networks
product: Junos OS
affected:
  - junos_os < 23.2R2-S7.7
  - junos_os >= 23.4 < 23.4R2-S8.13
  - junos_os >= 24.2 < 24.2R2-S5.5
  - junos_os >= 24.4 < 24.4R2-S5
  - junos_os >= 25.2 < 25.2R2-S2
  - junos_os >= 25.4 < 25.4R1-S3
  - junos_os >= 26.2 < 26.2R1-S2
  - junos_os_evolved < 23.2R2-S7.7-EVO
  - junos_os_evolved >= 23.4 < 23.4R2-S8.11-EVO
  - junos_os_evolved >= 24.2 < 24.2R2-S5.6-EVO
  - junos_os_evolved >= 24.4 < 24.4R2-S5-EVO
  - junos_os_evolved >= 25.2 < 25.2R2-S2-EVO
  - junos_os_evolved >= 25.4 < 25.4R1-S3-EVO
  - junos_os_evolved >= 26.2 < 26.2R1-S2-EVO
  - junos_os_evolved 23.4X100
  - junos_os_evolved >= 25.2X100 < 25.2X100-D35-EVO
  - junos_os_evolved >= 25.4X300 < 25.4X300-D40-EVO
published: '2026-10-14'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T16:23:06.250'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101974'
references:
  - url: 'https://supportportal.juniper.net/JSA112187'
    label: sirt@juniper.net
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T20:16:23.940484Z'
ingestedAt: '2026-10-14T17:44:53.636Z'
epss: 0.00251
epssPercentile: 0.16346
---

## Overview

An Improper Validation of Specified Quantity in Input vulnerability in rpd of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent OSPF peer to disclose rpd memory or cause a rpd crash via a malformed OSPF packets.

## Remediation

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