CVE-2026-101986
criticalAn Improper Authentication vulnerability in J-Web of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to bypass J-Web…
Vendor / product: Juniper — junos os evolved
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.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (sirt@juniper.net)
Timeline (UTC)
Published: 2026-10-14 17:17
Modified: 2026-10-30 18:45
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-11-03 07:34 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
juniper / junos_os_evolved ≤23.1, 23.2, 23.4, 23.4x100, 24.2, 24.4
juniper / junos ≤23.1, 23.2, 23.4, 24.2, 24.4, 25.2
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://supportportal.juniper.net/JSA112187
References
- https://supportportal.juniper.net/JSA112187 sirt@juniper.net
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 07:34 UTC · record ↗