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Vulnerabilities ›

CVE-2026-21916

High

CWE-61 — Weakness Type

                    Published: Apr 9, 2026                      ·  Modified: Apr 16, 2026                      ·  Source: NVD                

CVSS v3

7.3

🔗 NVD Official

📄 Description (English)

A UNIX Symbolic Link (Symlink) Following vulnerability in the CLI of Juniper Networks Junos OS allows a local, authenticated attacker with low privileges to escalate their privileges to root which will lead to a complete compromise of the system.

When after a user has performed a specific 'file link ...' CLI operation, another user commits (unrelated configuration changes), the first user can login as root.

This issue affects Junos OS:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S6,
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S2,
* 25.2 versions before 25.2R2.

This issue does not affect versions 25.4R1 or later.

🤖

Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 1

https://kb.juniper.net/JSA107807

sirt@juniper.net

📊 CVSS Score

7.3

/ 10.0 — High

📊 CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack VectorL — Low / Local

Attack ComplexityL — Low / Local

Privileges RequiredL — Low / Local

User InteractionR — Required

ScopeU — Unchanged

ConfidentialityH — High

IntegrityH — High

AvailabilityH — High

📋 Quick Facts

Severity High

CVSS Score7.3

CWECWE-61

EPSS0.01%

Exploit No

Patch ✗ No

Published 2026-04-09

Source Feed nvd

🏷️ Tags

CWE-61

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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