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Junos CVE-2025-52963

| EUVD-2025-21151 MEDIUM
Improper Access Control (CWE-284)
2025-07-11 sirt@juniper.net
5.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Patch available
Apr 16, 2026 - 05:29 EUVD
23.4R2-S5,24.4R1-S3,21.2R3-S9
EUVD ID Assigned
Mar 16, 2026 - 08:18 euvd
EUVD-2025-21151
Analysis Generated
Mar 16, 2026 - 08:18 vuln.today
CVE Published
Jul 11, 2025 - 15:15 nvd
MEDIUM 5.5

DescriptionNVD

An Improper Access Control vulnerability in the User Interface (UI) of Juniper Networks Junos OS allows a local, low-privileged attacker to bring down an interface, leading to a Denial-of-Service.

Users with "view" permissions can run a specific request interface command which allows the user to shut down the interface. This issue affects Junos OS:

  • All versions before 21.2R3-S9,
  • from 21.4 before 21.4R3-S11,
  • from 22.2 before 22.2R3-S7,
  • from 22.4 before 22.4R3-S7,
  • from 23.2 before 23.2R2-S4,
  • from 23.4 before 23.4R2-S5,
  • from 24.2 before 24.2R2-S1,
  • from 24.4 before 24.4R1-S3, 24.4R2.

Analysis

An Improper Access Control vulnerability in the User Interface (UI) of Juniper Networks Junos OS allows a local, low-privileged attacker to bring down an interface, leading to a Denial-of-Service.

Users with "view" permissions can run a specific request interface command which allows the user to shut down the interface. This issue affects Junos OS:

  • All versions before 21.2R3-S9,
  • from 21.4 before 21.4R3-S11,
  • from 22.2 before 22.2R3-S7,
  • from 22.4 before 22.4R3-S7,
  • from 23.2 before 23.2R2-S4,
  • from 23.4 before 23.4R2-S5,
  • from 24.2 before 24.2R2-S1,
  • from 24.4 before 24.4R1-S3, 24.4R2.

Technical ContextAI

This vulnerability is classified as Improper Access Control (CWE-284).

RemediationAI

Monitor vendor advisories for patches. Apply mitigations such as network segmentation, access restrictions, and monitoring.

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CVE-2025-52963 vulnerability details – vuln.today

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