CVE-2026-102030 Juniper Networks Junos OS - Denial of Service

Juniper Networks Junos OS and Junos OS Evolved contain a denial of service caused by incomplete cleanup in the rpd process when a configured MVPN neighbor sends a BGP MVPN update with inter-region segmented VRF and 'protocols mvpn inter-region-template' configured, letting configured MVPN neighbors cause service disruption, exploit requires configured MVPN neighbor.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-459

Vendor fix

Update to the latest Junos OS or Junos OS Evolved version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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