Skip to content
OpenAdvisories
Critical · 9.8 CVE-2026-102031 EUVD-2026-101356GHSA-m9jc-rg9m-5x3v

Junos OS Evolved: A low-privileged TACACS+ user causes root command execution when authorization refresh is enabled

Published Oct 14, 2026 · Updated Oct 16, 2026 · Assigned by juniper

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

Description

An OS Command Injection vulnerability in TACACS of Juniper Networks Junos OS Evolved allows a low-privileged TACACS+-authenticated user to execute commands with root privileges when periodic TACACS+ authorization-refresh is enabled.

Affected products

VendorProductAffectedFixed
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