Juniper JSI LWC up to 3.0.93 Virtual Lightweight Collector default password

Summaryinfo

A vulnerability categorized as very critical has been discovered in Juniper JSI LWC up to 3.0.93. This vulnerability affects unknown code of the component Virtual Lightweight Collector. The manipulation results in default password. This vulnerability is known as CVE-2026-33784. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Juniper JSI LWC up to 3.0.93. Affected is an unknown functionality of the component Virtual Lightweight Collector. The manipulation with an unknown input leads to a default password vulnerability. CWE is classifying the issue as CWE-1393. The product uses default passwords for potentially critical functionality. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at kb.juniper.net. This vulnerability is traded as CVE-2026-33784 since 03/23/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/10/2026).

Upgrading to version 3.0.94 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Juniper

Name

• JSI LWC

Version

• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12
• 3.0.13
• 3.0.14
• 3.0.15
• 3.0.16
• 3.0.17
• 3.0.18
• 3.0.19
• 3.0.20
• 3.0.21
• 3.0.22
• 3.0.23
• 3.0.24
• 3.0.25
• 3.0.26
• 3.0.27
• 3.0.28
• 3.0.29
• 3.0.30
• 3.0.31
• 3.0.32
• 3.0.33
• 3.0.34
• 3.0.35
• 3.0.36
• 3.0.37
• 3.0.38
• 3.0.39
• 3.0.40
• 3.0.41
• 3.0.42
• 3.0.43
• 3.0.44
• 3.0.45
• 3.0.46
• 3.0.47
• 3.0.48
• 3.0.49
• 3.0.50
• 3.0.51
• 3.0.52
• 3.0.53
• 3.0.54
• 3.0.55
• 3.0.56
• 3.0.57
• 3.0.58
• 3.0.59
• 3.0.60
• 3.0.61
• 3.0.62
• 3.0.63
• 3.0.64
• 3.0.65
• 3.0.66
• 3.0.67
• 3.0.68
• 3.0.69
• 3.0.70
• 3.0.71
• 3.0.72
• 3.0.73
• 3.0.74
• 3.0.75
• 3.0.76
• 3.0.77
• 3.0.78
• 3.0.79
• 3.0.80
• 3.0.81
• 3.0.82
• 3.0.83
• 3.0.84
• 3.0.85
• 3.0.86
• 3.0.87
• 3.0.88
• 3.0.89
• 3.0.90
• 3.0.91
• 3.0.92
• 3.0.93

License

• commercial

Website

• Vendor: https://www.juniper.net/

CPE 2.3info

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Entryinfo

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