---
id: CVE-2026-102176
title: >-
  A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  vulnerability in the SDK service process of Juniper Networks Junos OS allows
  an unauthenticated network attacker to cause a denial of service or compromise
  the Rout…
summary: >-
  A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
  vulnerability in the SDK service process of Juniper Networks Junos OS allows
  an unauthenticated network attacker to cause a denial of service or compromise
  the Rout…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-120
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T17:18:05.303'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102176'
references:
  - url: 'https://supportportal.juniper.net/JSA112188'
    label: sirt@juniper.net
tags:
  - nvd
ingestedAt: '2026-10-14T17:44:53.668Z'
---

## Overview

A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the SDK service process of Juniper Networks Junos OS allows an unauthenticated network attacker to cause a denial of service or compromise the Routing Engine by sending specific packets when the SDK service and a JDAF routing instance are enabled.

## Remediation

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