CVSS: v3.1: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS: v4.0: 8.7 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M)
An Improper Check for Unusual or Exceptional Conditions 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 an affected system receives a specific BGP EVPN update message over an established BGP session, this causes an rpd crash and restart.A BGP EVPN configuration is not necessary to be vulnerable. If peers are not configured to send BGP EVPN updates to a vulnerable device, then this issue can't occur.This issue affects iBGP and eBGP, over IPv4 and IPv6.This issue affects:Junos OS:
To be exposed to this issue a BGP peering needs to be configured via:[ protocols bgp ... neighbor ... ]
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
This issue was found during internal product security testing or research.
The following software releases have been updated to resolve this specific issue:Junos OS Evolved: 23.4R2-S5-EVO, 24.2R2-S1-EVO, 24.4R1-S3-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases;Junos OS: 23.4R2-S5, 24.2R2-S1, 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases.
This issue is being tracked as 1860302 which is visible on the Customer Support website.
Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).
There are no known workarounds for this issue.
2025-10-08: Initial Publication