Riskcovery

CVE-2025-52964

Junos OS and Junos OS Evolved: Receipt of a specific BGP UPDATE causes an rpd crash on devices with BGP multipath configured

State
Published
Severity
7.1 High
Published
Jul 11, 2025
Updated
Jul 14, 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 unauthenticated, network-based attacker to cause a Denial of Service (DoS).

When the device receives a specific BGP UPDATE packet, the rpd crashes and restarts. Continuous receipt of this specific packet will cause a sustained DoS condition.

For the issue to occur, BGP multipath with "pause-computation-during-churn" must be configured on the device, and the attacker must send the paths via a BGP UPDATE from a established BGP peer.

This issue affects: Junos OS: * All versions before 21.4R3-S7, * from 22.3 before 22.3R3-S3, * from 22.4 before 22.4R3-S5, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2.

Junos OS Evolved: * All versions before 21.4R3-S7-EVO, * from 22.3 before 22.3R3-S3-EVO, * from 22.4 before 22.4R3-S5-EVO, * from 23.2 before 23.2R2-EVO, * from 23.4 before 23.4R2-EVO.

Scores

CVSSScoreVectorSource
4.07.1 HighCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Ljuniper
3.16.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hjuniper

Weaknesses

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 21.4R3-S7Affected
  • 22.3 to before 22.3R3-S3Affected
  • 22.4 to before 22.4R3-S5Affected
  • 23.2 to before 23.2R2Affected
  • 23.4 to before 23.4R2Affected
  • 22.1 to before 22.1*Affected
  • 22.2 to before 22.2*Affected
Junos OS EvolvedJuniper Networks
  • before 21.4R3-S7-EVOAffected
  • 22.3 to before 22.3R3-S3-EVOAffected
  • 22.4 to before 22.4R3-S5-EVOAffected
  • 23.2 to before 23.2R2-EVOAffected
  • 23.4 to before 23.4R2-EVOAffected

References

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