Riskcovery

CVE-2025-52958

Junos OS and Junos OS Evolved: When route validation is enabled, BGP connection establishment failure causes RPD crash

State
Published
Severity
6.0 Medium
Published
Jul 11, 2025
Updated
Jul 11, 2025
Reserved
Jun 23, 2025

Read the record on cve.org

Description

A Reachable Assertion vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).On all Junos OS and Junos OS Evolved devices, when route validation is enabled, a rare condition during BGP initial session establishment can lead to an rpd crash and restart. This occurs specifically when the connection request fails during error-handling scenario.

Continued session establishment failures leads to a sustained DoS condition.

This issue affects Junos OS:

* All versions before 22.2R3-S6, * from 22.4 before 22.4R3-S6, * from 23.2 before 23.2R2-S3, * from 23.4 before 23.4R2-S4, * from 24.2 before 24.2R2;

Junos OS Evolved: * All versions before 22.2R3-S6-EVO, * from 22.4 before 22.4R3-S6-EVO, * from 23.2 before 23.2R2-S3-EVO, * from 23.4 before 23.4R2-S4-EVO, * from 24.2 before 24.2R2-EVO.

Scores

CVSSScoreVectorSource
4.06.0 MediumCVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A/RE:M/U:Greenjuniper
3.15.3 MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hjuniper

Weaknesses

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 22.2R3-S6Affected
  • 22.4 to before 22.4R3-S6Affected
  • 23.2 to before 23.2R2-S3Affected
  • 23.4 to before 23.4R2-S4Affected
  • 24.2 to before 24.2R2Affected
Junos OS EvolvedJuniper Networks
  • before 22.2R3-S6-EVOAffected
  • 22.4 to before 22.4R3-S6-EVOAffected
  • 23.2 to before 23.2R2-S3-EVOAffected
  • 23.4 to before 23.4R2-S4-EVOAffected
  • 24.2 to before 24.2R2-EVOAffected

References

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