{"id":"CVE-2026-101954","title":"An Improper Authentication vulnerability in the J-Web management interface and its NETCONF session handling of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to obtain root-level device configur…","summary":"An Improper Authentication vulnerability in the J-Web management interface and its NETCONF session handling of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to obtain root-level device configur…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-287"],"vendor":"Juniper Networks","product":"Junos OS","affected":["junos_os >= 25.2 < 25.2R2-S2","junos_os >= 25.4 < 25.4R1-S3","junos_os >= 26.2 < 26.2R1-S2","junos_os_evolved >= 25.2 < 25.2R2-S2-EVO","junos_os_evolved >= 25.4 < 25.4R1-S3-EVO","junos_os_evolved >= 26.2 < 26.2R1-S2-EVO","junos_os_evolved 23.4X100","junos_os_evolved >= 25.2X100 < 25.2X100-D35-EVO","junos_os_evolved >= 25.4X300 < 25.4X300-D40-EVO"],"published":"2026-10-14","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:16:59.280","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101954","references":[{"url":"https://supportportal.juniper.net/JSA112187","label":"sirt@juniper.net"}],"tags":["nvd","cve.org"],"epss":0.00477,"epssPercentile":0.41023,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-16T03:56:49.579626Z"},"ingestedAt":"2026-10-14T18:47:39.301Z","slug":"CVE-2026-101954","body":"## Overview\n\nAn Improper Authentication vulnerability in the J-Web management interface and its NETCONF session handling of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network attacker to obtain root-level device configuration access and take over the device via a reachable J-Web HTTP or HTTPS service when web management is enabled.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}