Secuno
ENNL
Book demo

CVE-2026-33784

Juniper Virtual Lightweight Collector vulnerability

9.8 CRITICALEPSS 0.48%
  1. Published9 Apr 2026

Description

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Juniper Virtual Lightweight Collector< 3.0.94

Remediation

Fixed in
Juniper Virtual Lightweight Collector≥ 3.0.94
Patch & vendor advisories

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-165049.8
Deployment of the VPS.org one-click Zulip template deploys a hardcoded application…
CVE-2026-165039.1
Deployment of the VPS.org one-click Supabase template deploys a PostgreSQL instance…
CVE-2026-52699.8
In Ciena's Navigator Network Control Suite (NCS) and Manage Control Plan (MCP), there…
CVE-2026-350759.8
An unauthenticated remote attacker can recover a default, hard coded password from a…
CVE-2026-44049.4
Use of hard coded credentials in GoHarbor Harbor version 2.15.0 and below, allows…
CVE-2026-228869.8
OpenMQ exposes a TCP-based management service (imqbrokerd) that by default requires…

Frequently asked

Is CVE-2026-33784 being actively exploited?

CVE-2026-33784 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.48%.

How severe is CVE-2026-33784?

CVE-2026-33784 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.48% probability of exploitation.

Which products are affected by CVE-2026-33784?

Affected products include Juniper Virtual Lightweight Collector.

How do I fix CVE-2026-33784?

Upgrade affected software to a fixed version, for example Juniper Virtual Lightweight Collector 3.0.94 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33784 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.