CVE-2026-12219 MEDIUM

CVE-2026-12219: Yealink SIP-T46U Web FastCGI Service start mod_diagnose.CommandShellByType command injection

Vendor Yealink
Product SIP-T46U
Weakness CWE-77
Published June 15, 2026
Last update June 15, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 15, 2026 CVE published
June 15, 2026 Record updated