← Back to CVE List
CVE-2026-101956NVD
Vulnerability Summary
An Improper Authentication vulnerability in the J-Web web management component of Juniper Networks Junos OS allows an unauthenticated remote attacker to execute arbitrary Junos commands with root privileges via the exposed J-Web web interface.
CVSS v4.0 Base Metrics — Score 9.3 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)Low
CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Affected & Patched Versions
- Juniper Networks Junos OS >= 25.2 and < 25.2R2-S2
- Juniper Networks Junos OS >= 25.4 and < 25.4R1-S3
- Juniper Networks Junos OS >= 26.2 and < 26.2R1-S2
- Juniper Networks Junos OS 25.2R2-S2
- Juniper Networks Junos OS 25.4R1-S3
- Juniper Networks Junos OS 26.2R1-S2