CVE catalog

CVE-2026-21915

A Permissive List of Allowed Input vulnerability in the CLI of Juniper Networks Support Insights (JSI) Virtual Lightweight Collector (vLWC) allows a local, high privileged attacker to escalate their p

[CVE catalog]

Severity
High · CVSS 8.4CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:M/U:X
Published
Source
[NVD] · [CVE record]
EPSS
2.24% · Oct 27, 2026

A Permissive List of Allowed Input vulnerability in the CLI of Juniper Networks Support Insights (JSI) Virtual Lightweight Collector (vLWC) allows a local, high privileged attacker to escalate their privileges to root. The CLI menu accepts input without carefully validating it, which allows for shell command injection. These shell commands are executed with root permissions and can be used to gain complete control of the system. This issue affects all JSI vLWC versions before 3.0.94.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Cpevirtual_lightweight_collectorNot reported3.0.94fixed
Cpevirtual_lightweight_collectorNot reported3.0.94fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Cpevirtual_lightweight_collectorcpeNot reported3.0.94Not reportedNot reportedNot reported
Cpevirtual_lightweight_collectorcpeNot reported3.0.94Not reportedNVD-CVE-2026-21915Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References