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Medium · 6.5 CVE-2026-101970 EUVD-2026-101327GHSA-wg4p-r223-jpr2

Junos OS and Junos OS Evolved: Specific PIM messages causes rpd crash when multiple-triggered-joins is used

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

Description

A Use After Free vulnerability in the rpd PIM Join/Prune processing of Juniper Networks Junos OS and Junos OS Evolved platforms allows an unauthenticated adjacent attacker to crash the routing daemon via specific PIM messages when sparse mode PIM is configured.

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