CVE-2026-12219

MEDIUM 6.3

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

CVSS Score

6.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-77 CWE-74
Vendor	yealink
Product	sip-t46u
Published	Jun 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Yealink / SIP-T46U

108.86.0.118

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/370862 vuldb.com: https://vuldb.com/vuln/370862/cti vuldb.com: https://vuldb.com/cve/CVE-2026-12219 vuldb.com: https://vuldb.com/submit/834204 cdn2.v50to.cc: http://cdn2.v50to.cc/T46U/T46U_mod_diagnose_CommandShellByType_iperf_time_cmd_injection.zip

Credits

🔍 CookedMelon (VulDB User) VulDB CNA Team