Telenia TVox up to 24.9.21/26.5.3 Sudoers Configuration /etc/sudoers.d/telenia privileges management

Summaryinfo

A vulnerability, which was classified as critical, has been found in Telenia TVox up to 24.9.21/26.5.3. This impacts an unknown function of the file /etc/sudoers.d/telenia of the component Sudoers Configuration. This manipulation causes privileges management. This vulnerability appears as CVE-2026-67609. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Telenia TVox up to 24.9.21/26.5.3. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /etc/sudoers.d/telenia of the component Sudoers Configuration. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at karmainsecurity.com. This vulnerability is known as CVE-2026-67609 since 07/29/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/03/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-52324). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Telenia

Name

• TVox

Version

• 24.9.0
• 24.9.1
• 24.9.2
• 24.9.3
• 24.9.4
• 24.9.5
• 24.9.6
• 24.9.7
• 24.9.8
• 24.9.9
• 24.9.10
• 24.9.11
• 24.9.12
• 24.9.13
• 24.9.14
• 24.9.15
• 24.9.16
• 24.9.17
• 24.9.18
• 24.9.19
• 24.9.20
• 24.9.21
• 26.5.0
• 26.5.1
• 26.5.2
• 26.5.3

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