Critical 9.8Published Apr 9, 2026

CVE-2026-33784JSI Virtual Lightweight Collector: Default password is not required to be changed which allows unauthorized high-privileged access

Updated under an hour ago (Oct 26, 2026, 12:23 AM ET)

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It affects Juniper Networks JSI LWC and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Juniper Networks JSI LWC

Exploited in the last 30 days

A Use of Default Password vulnerability in the Juniper Networks Support Insights (JSI) Virtual Lightweight Collector (vLWC) allows an unauthenticated, network-based attacker to take full control of the device. vLWC software images ship with an initial password for a high privileged account. A change of this password is not enforced during the provisioning of the software, which can make full access to the system by unauthorized actors possible.This issue affects all versions of vLWC before 3.0.94.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-1393
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: juniper
NVD analysis: Analyzed
Record last updated: Apr 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Juniper Networks JSI LWC juniper_networks:jsi_lwc (from the name)	before 3.0.94	CNA record
juniper virtual_lightweight_collector juniper:virtual_lightweight_collector	before 3.0.94	NVD

References

https://kb.juniper.net/JSA107871vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.