CVE-2025-52989

Summary

An Improper Neutralization of Delimiters vulnerability in the UI of Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with high privileges to modify the system configuration.

A user with limited configuration and commit permissions, using a specifically crafted annotate configuration command, can change any part of the device configuration.

This issue affects:

 Junos OS: 

  • all versions before 22.2R3-S7,
  • 22.4 versions before 22.4R3-S7,
  • 23.2 versions before 23.2R2-S4,
  • 23.4 versions before 23.4R2-S4,
  • 24.2 versions before 24.2R2-S1,
  • 24.4 versions before 24.4R1-S2, 24.4R2;

Junos OS Evolved:

  • all versions before 22.4R3-S7-EVO,

  • 23.2-EVO versions before 23.2R2-S4-EVO,

  • 23.4-EVO versions before 23.4R2-S5-EVO, 

  • 24.2-EVO versions before 24.2R2-S1-EVO

  • 24.4-EVO versions before 24.4R2-EVO.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS0 < 22.2R3-S7affected
Juniper NetworksJunos OS22.4 < 22.4R3-S7affected
Juniper NetworksJunos OS23.2 < 23.2R2-S4affected
Juniper NetworksJunos OS23.4 < 23.4R2-S4affected
Juniper NetworksJunos OS24.2 < 24.2R2-S1affected
Juniper NetworksJunos OS24.4 < 24.4R1-S2, 24.4R2affected
Juniper NetworksJunos OS Evolved0 < 22.4R3-S7-EVOaffected
Juniper NetworksJunos OS Evolved23.2-EVO < 23.2R2-S4-EVOaffected
Juniper NetworksJunos OS Evolved23.4-EVO < 23.4R2-S5-EVOaffected
Juniper NetworksJunos OS Evolved24.2-EVO < 24.2R2-S1-EVOaffected
Juniper NetworksJunos OS Evolved24.4-EVO < 24.4R2-EVOaffected

Weaknesses

  • CWE-140: CWE-140 Improper Neutralization of Delimiters

Workarounds

There are no known workarounds for this issue.

To reduce the risk of exploitation use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References