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Junos OS: An ICCP peer causes dot1xd to crash when dot1x synchronization is enabled

Juniper Junos OS · CVE-2026-102069
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What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
8.8
EPSS
0.3%
First seen
6 d ago
Status
corroborated

All Juniper vulnerabilities