CVE-2026-12219CWE-74CWE-77

Yealink SIP-T46U Web FastCGI Service start mod_diagnose.CommandShellByType command injection

Medium · published June 15, 2026

CVSS v4.0
5.3
EPSS
1%
Percentile
64.0
In the wild
Unconfirmed
What it is

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. Upgrading to version 108.87.0.23 is sufficient to resolve this issue. It is advisable to upgrade the affected component.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
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
EPSS
0.01050 · 64.0th percentile
Weaknesses
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'); CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-06-15T04:30Z
EPSS history
Timeline
  • 15 JUN 04:30Z
    Yealink SIP-T46U Web FastCGI Service start mod_diagnose.CommandShellByType command injection
    cvelistv5