Vulnerability intelligence

CVE-2026-33784

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 Score

9.8

Critical

EPSS — Exploit Probability

0.5%

Riskier than 37% of all CVEs

Exploitation

Not in CISA KEV

No federal exploitation record

Remediation

unknown

Check vendor advisories

NVD entry PoC / advisory

1 article across 1 outlet · first covered Apr 10, 2026 · latest Apr 10, 2026

Coverage timeline

Juniper fixes critical default password bug and multiple flaws
www.securityweek.com · Apr 10, 2026