CVE-2026-67609 HIGH

CVE-2026-67609: Telenia TVox 26.5.3 Privilege Escalation via Insecure sudoers Configuration

Vendor Telenia Software
Product TVox
Weakness CWE-250
Published August 3, 2026
Last update August 3, 2026

CVSS base score

8.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Telenia Software TVox 26.5.3 and prior 26.x versions, and 24.9.21 and prior 24.x versions, contain a privilege escalation vulnerability that allows attackers with access to the apache account to execute arbitrary commands as root by exploiting an insecure sudoers configuration in /etc/sudoers.d/telenia. The configuration grants the apache user NOPASSWD execution of /bin/nice, which can be leveraged to invoke arbitrary commands, enabling full root-level command execution without supplying a password.

Key dates

02Disclosure timeline

August 3, 2026 CVE published
August 3, 2026 Record updated