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Junos OS and Junos OS Evolved: An attacker causes remote code execution when J-Web virtual-domain is configured

Juniper Junos OS · CVE-2026-101983
0 news outlets1 CERTs and agencies0 researchers

What is it?

A Stack-based Buffer Overflow vulnerability in the httpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to cause remote code execution and denial of service via a J-Web virtual-domain configured.

Evidence

CERTs and agencies (1)

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
9.8
EPSS
0.5%
First seen
4 h ago
Status
confirmed

All Juniper vulnerabilities