Improper Access Control in Juniper Networks Junos OS
CVE-2025-52963

6.8MEDIUM

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Vendor
CVE Published:
11 July 2025

Badges

👾 Exploit Exists

What is CVE-2025-52963?

An Improper Access Control vulnerability in the User Interface (UI) of Juniper Networks' Junos OS enables low-privileged local attackers to shut down an interface. This can potentially lead to a Denial-of-Service condition. Particularly, users with 'view' permissions can execute a specific request interface command, which may result in disrupting essential services. The issue affects several versions of Junos OS prior to updates aimed at addressing this serious concern.

Affected Version(s)

Junos OS 0 < 21.2R3-S9

Junos OS 21.4 < 21.4R3-S11

Junos OS 22.2 < 22.2R3-S7

References

https://supportportal.juniper.net/JSA100078
vendor-advisory

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-52963 : Improper Access Control in Juniper Networks Junos OS