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High · 7.5 CVE-2026-101977 EUVD-2026-101442GHSA-6mqg-fmqw-35c3

Junos OS and Junos OS Evolved: A specific BGP packet causes an rpd crash when ephemeral configuration is used

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

Description

A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP peer to cause a persistent routing-daemon denial of service via a specific BGP packet when ephemeral configuration is used.

Affected products

VendorProductAffectedFixed
Juniper Networks Junos OS < 23.2R2-S7.7, 23.4 – < 23.4R2-S8.13, 24.2 – < 24.2R2-S5.5, 24.4 – < 24.4R2-S5, 25.2 – < 25.2R2-S2, 25.4 – < 25.4R1-S3, 26.2 – < 26.2R1-S2 23.2R2-S7.7
Juniper Networks Junos OS Evolved < 23.2R2-S7.7-EVO, 23.4 – < 23.4R2-S8.11-EVO, 24.2 – < 24.2R2-S5.6-EVO, 24.4 – < 24.4R2-S5-EVO, 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 23.2R2-S7.7-EVO

References