CVE-2026-102031
9.8CriticalPublished 14 Oct 2026 · NVD status: Awaiting Analysis · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Impact
- Full C/I/A compromise
- Weakness
- CWE-78
Impact
A low-privileged authenticated TACACS+ user can execute arbitrary OS commands as root. The attacker must already have network access and valid TACACS+ credentials on a device with periodic authorization-refresh enabled.
Root cause
Improper sanitization of user input during periodic TACACS+ authorization refresh enables command injection into the underlying OS shell.
Affected systems
Versions not listed — check the vendor advisory.
CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Fix & remediation
Upgrade Junos OS Evolved to the resolved release specified in Juniper advisory JSA112250, or disable periodic TACACS+ authorization-refresh in the device configuration until patched.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD 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.