CVE-2026-12219
Received Received - Intake
Command Injection in Yealink SIP-T46U

Publication date: 2026-06-15

Last updated on: 2026-06-15

Assigner: VulDB

Description
A flaw has been found in Yealink SIP-T46U 108.86.0.118. The impacted element is the function mod_diagnose.CommandShellByType of the file /api/diagnosis/start of the component Web FastCGI Service. This manipulation of the argument Time causes command injection. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-15
Last Modified
2026-06-15
Generated
2026-06-15
AI Q&A
2026-06-15
EPSS Evaluated
N/A
NVD
CVE-2026-12219
EUVD
EUVD-2026-36692
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
yealink sip-t46u 108.86.0.118
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a flaw found in the Yealink SIP-T46U device, specifically in the function mod_diagnose.CommandShellByType within the file /api/diagnosis/start of the Web FastCGI Service component. The issue arises from improper handling of the argument 'Time', which allows an attacker to perform command injection. This means an attacker can remotely execute arbitrary commands on the affected device.

Impact Analysis

The vulnerability allows remote attackers to inject and execute arbitrary commands on the affected Yealink SIP-T46U device. This can lead to unauthorized control over the device, potentially compromising its integrity, availability, and confidentiality. Since the exploit has been published, attackers may actively use it to gain access or disrupt services.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-12219. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart