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

Quick assessment

Affected
Telenia Software TVox
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Telenia Software TVox是Telenia Software公司的一款VoIP电话系统软件。 Telenia Software TVox 26.5.3及之前的26.x版本和24.9.21及之前的24.x版本存在权限许可和访问控制问题漏洞，该漏洞源于/etc/sudoers.d/telenia中的不安全sudoers配置，允许apache用户免密执行/bin/nice，从而利用其调用任意命令，可能导致具有apache账户访问权限的攻击者以root执行任意命令。

CVSS 7.8 · High EPSS 0.20% · P9

Affected Version Matrix 2

VendorProduct Version RangeStatus
Telenia Software TVox 26.0.0≤ 26.5.3 affected
24.0.0≤ 24.9.21 affected
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I. Basic Information for CVE-2026-67609

Vulnerability Information
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Vulnerability Title
Telenia TVox 26.5.3 Privilege Escalation via Insecure sudoers Configuration
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
带着不必要的权限执行
Source: CVE Program / CVE List V5
Vulnerability Title
Telenia Software TVox 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Telenia Software TVox是Telenia Software公司的一款VoIP电话系统软件。 Telenia Software TVox 26.5.3及之前的26.x版本和24.9.21及之前的24.x版本存在权限许可和访问控制问题漏洞，该漏洞源于/etc/sudoers.d/telenia中的不安全sudoers配置，允许apache用户免密执行/bin/nice，从而利用其调用任意命令，可能导致具有apache账户访问权限的攻击者以root执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Telenia Software TVox 26.0.0 ~ 26.5.3 -

II. Public POCs for CVE-2026-67609

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III. Intelligence Information for CVE-2026-67609

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Vendor Advisories for CVE-2026-67609 (2)

Vendor Pages for CVE-2026-67609 (1)

Same Patch Batch · Telenia Software · 2026-08-03 · 3 CVEs total

CVE-2026-64827 9.8 CRITICAL Telenia TVox 26.5.3 Authentication Bypass via set_env.php
CVE-2026-67608 7.2 HIGH Telenia TVox 26.5.3 OS Command Injection via action_audio.php

IV. Related Vulnerabilities

Same product: TVox
Same vendor: Telenia Software
Same weakness: CWE-250

V. Comments for CVE-2026-67609

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