---
id: CVE-2026-102015
title: >-
  A Heap-based Buffer Overflow vulnerability in the secure-dot1xd process of
  Juniper Networks on Junos OS and Junos OS Evolved allows an unauthenticated
  adjacent network attacker to execute code as root or cause a denial of service
  via an …
summary: >-
  A Heap-based Buffer Overflow vulnerability in the secure-dot1xd process of
  Juniper Networks on Junos OS and Junos OS Evolved allows an unauthenticated
  adjacent network attacker to execute code as root or cause a denial of service
  via an …
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-122
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T17:17:53.993'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102015'
references:
  - url: 'https://supportportal.juniper.net/JSA112187'
    label: sirt@juniper.net
tags:
  - nvd
ingestedAt: '2026-10-14T17:44:53.645Z'
---

## Overview

A Heap-based Buffer Overflow vulnerability in the secure-dot1xd process of Juniper Networks on Junos OS and Junos OS Evolved allows an unauthenticated adjacent network attacker to execute code as root or cause a denial of service via an EAPOL frame sent to an 802.1X-authenticated interface.

## Remediation

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