CVE-2026-102069CWE-121

CVE-2026-102069

High · published October 14, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
27.4
In the wild
Unconfirmed
What it is

A Stack-based Buffer Overflow vulnerability in the dot1x daemon of Juniper Networks Junos OS devices operating as Junos Fusion Aggregation Devices allows an adjacent attacker acting as the configured ICCP peer to cause a denial of service and potentially execute code as root via. The issue is triggered when dot1x synchronization is enabled for the required Fusion satellite topology.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L
EPSS
0.00349 · 27.4th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-10-14T21:18Z
References (1)
EPSS history
Timeline
  • 16 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 14 OCT 16:17Z
    Junos OS: An ICCP peer causes dot1xd to crash when dot1x synchronization is enabled
    cvelistv5
  • 14 OCT 16:17Z
    Junos OS: An ICCP peer causes dot1xd to crash when dot1x synchronization is enabled
    cvelistv5