An Improper Authentication vulnerability in J-Web of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to bypass J-Web authentication and execute CGI content with elevated privileges via a crafted HTTP request.
History

Fri, 16 Oct 2026 23:30:00 +0000

Type Values Removed Values Added
First Time appeared Juniper Networks
Juniper Networks junos Os
Juniper Networks junos Os Evolved
Vendors & Products Juniper Networks
Juniper Networks junos Os
Juniper Networks junos Os Evolved

Thu, 15 Oct 2026 05:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Description An Improper Authentication vulnerability in J-Web of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to bypass J-Web authentication and execute CGI content with elevated privileges via a crafted HTTP request.
Title Junos OS and Junos OS Evolved: J-Web permits pre-authentication CGI execution
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published: 2026-10-14T16:20:56.882Z

Updated: 2026-10-15T03:57:22.964Z

Reserved: 2026-09-28T16:31:35.504Z

Link: CVE-2026-101986

cve-icon Vulnrichment

Updated: 2026-10-14T20:39:32.779Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-14T17:17:50.953

Modified: 2026-10-15T16:24:19.073

Link: CVE-2026-101986

cve-icon Redhat

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