CVE-2026-102069
Junos OS: An ICCP peer causes dot1xd to crash when dot1x synchronization is enabled
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-121 |
| Vendor | juniper networks |
| Product | junos os |
| Published | Oct 14, 2026 |
| Last Updated | Oct 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for juniper networks junos os
Be the first to know when new high vulnerabilities affecting juniper networks junos os are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Juniper Networks / Junos OS
0 < 23.2R2-S7.7 23.4 < 23.4R2-S8.13 24.2 < 24.2R2-S5.5 24.4 < 24.4R2-S5 25.2 < 25.2R2-S2 25.4 < 25.4R1-S3 26.2 < 26.2R1-S2