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CVE-2026-102031

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

Published
Last modified
Status
published
Known exploitation
Not listed in CISA KEV
Fix
Fixed in 23.2R2-S7.7-EVO, 23.4R2-S8.11-EVO, 24.2R2-S5.6-EVO, 24.4R2-S5-EVO, 25.2R2-S2-EVO, and 4 more
Public exploit
None on Exploit-DB
CISA SSVC
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total
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Decision points from CISA's Vulnrichment, assessed (SSVC 2.0.3).

SSVC documentation

Summary

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 versions

  • Juniper Networks Junos OS Evolved

    fixed in 23.2R2-S7.7-EVO; From 23.4 · fixed in 23.4R2-S8.11-EVO; From 24.2 · fixed in 24.2R2-S5.6-EVO; From 24.4 · fixed in 24.4R2-S5-EVO; From 25.2 · fixed in 25.2R2-S2-EVO; From 25.4 · fixed in 25.4R1-S3-EVO; From 26.2 · fixed in 26.2R1-S2-EVO; From 25.2X100 · fixed in 25.2X100-D35-EVO; From 25.4X300 · fixed in 25.4X300-D40-EVO

References 1

supportportal.juniper.net