Dashboard / CVE-2026-21915

CVE-2026-21915

HIGH
MEDIUM Priority: 0.19 BB Relevance: 37/100
Published: 2026-04-09 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: High
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

Description

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.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
juniper virtual_lightweight_collector < 3.0.94

References & Advisories (1)

Bug Bounty Relevance

37 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

8.4 / 10.0 v4.0
CVSS: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

EPSS — Exploitation Probability

2.24%
Raw Score 0.022400
Percentile 82.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.02240
2026-10-28
0.02240

Intelligence Sources

nvd ref →

External Links