CVE-2026-12219

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

MEDIUM
6.3
CVSS Score
Published: June 15, 2026 at 04:30 AM UTC
Updated: July 24, 2026 at 12:10 PM UTC
1 product affected across 1 vendorSIP-T46U

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Severity
MEDIUM6.3
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 108.87.0.23 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/370862
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/370862/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-12219
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/834204

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-77CWE-74

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