CVE-2026-101963: Juniper Networks Junos OS

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An Incorrect Calculation vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos EVO allows a remote BGP EVPN neighbor to cause an rpd crash when SRv6 EVPN multihoming is configured.

Affected products

• Juniper Networks Junos OS: from 25.2, before 25.2R2-S2 (fixed in 25.2R2-S2); from 25.4, before 25.4R1-S3 (fixed in 25.4R1-S3); from 26.2, before 26.2R1-S2 (fixed in 26.2R1-S2)
• Juniper Networks Junos OS Evolved: from 25.2, before 25.2R2-S2-EVO (fixed in 25.2R2-S2-EVO); from 25.4, before 25.4R1-S3-EVO (fixed in 25.4R1-S3-EVO); from 26.2, before 26.2R1-S2-EVO (fixed in 26.2R1-S2-EVO); version 23.4X100 only; from 25.2X100, before 25.2X100-D35-EVO (fixed in 25.2X100-D35-EVO); from 25.4X300, before 25.4X300-D40-EVO (fixed in 25.4X300-D40-EVO)

Published 2026-10-14. Last modified 2026-10-15.