CVE-2025-59959

Summary

An Untrusted Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with low privileges to cause a Denial-of-Service (DoS).

When the command 'show route < ( receive-protocol | advertising-protocol ) bgp > detail' is executed, and at least one of the routes in the intended output has specific attributes, this will cause an rpd crash and restart. 'show route … extensive' is not affected.

This issue affects:

Junos OS: 

  • all versions before 22.4R3-S8,
  • 23.2 versions before 23.2R2-S5,
  • 23.4 versions before 23.4R2-S5,
  • 24.2 versions before 24.2R2-S2,
  • 24.4 versions before 24.4R2;

Junos OS Evolved:

  • all versions before 22.4R3-S8-EVO, 
  • 23.2 versions before 23.2R2-S5-EVO,
  • 23.4 versions before 23.4R2-S6-EVO,
  • 24.2 versions before 24.2R2-S2-EVO,
  • 24.4 versions before 24.4R2-EVO.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS0 < 22.4R3-S8affected
Juniper NetworksJunos OS23.2 < 23.2R2-S5affected
Juniper NetworksJunos OS23.4 < 23.4R2-S5affected
Juniper NetworksJunos OS24.2 < 24.2R2-S2affected
Juniper NetworksJunos OS24.4 < 24.4R2affected
Juniper NetworksJunos OS Evolved0 < 22.4R3-S8-EVOaffected
Juniper NetworksJunos OS Evolved23.2 < 23.2R2-S5-EVOaffected
Juniper NetworksJunos OS Evolved23.4 < 23.4R2-S6-EVOaffected
Juniper NetworksJunos OS Evolved24.2 < 24.2R2-S2-EVOaffected
Juniper NetworksJunos OS Evolved24.4 < 24.4R2-EVOaffected

Weaknesses

  • CWE-822: CWE-822 Untrusted Pointer Dereference

Workarounds

Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.

Utilize CLI authorization to disallow execution of the 'show route' command with the 'detail' option.

ADP Enrichment

CISA ADP Vulnrichment

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

References