Skip to content
OpenAdvisories
High · 7.5 CVE-2026-101948 EUVD-2026-101443GHSA-3whp-2r54-576x

Junos OS and Junos OS Evolved: A specific BGP FlowSpec update causes an rpd crash when BGP FlowSpec import policy is used

Published Oct 14, 2026 · Updated Oct 14, 2026 · Assigned by juniper

Vendor: Juniper Networks Product: Junos OS Product: Junos OS Evolved Category: Network devices

Description

A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated BGP peer to cause a denial of service via a specific BGP FlowSpec update received by an affected BGP session.

Affected products

VendorProductAffectedFixed
Juniper Networks Junos OS 25.2 – < 25.2R2-S2, 25.4 – < 25.4R1-S3, 26.2 – < 26.2R1-S2 25.2R2-S2
Juniper Networks Junos OS Evolved 25.2 – < 25.2R2-S2-EVO, 25.4 – < 25.4R1-S3-EVO, 26.2 – < 26.2R1-S2-EVO, 23.4X100, 25.2X100 – < 25.2X100-D35-EVO, 25.4X300 – < 25.4X300-D40-EVO 25.2R2-S2-EVO

References