CVE-2026-12223

MEDIUM

Yealink SIP-T46U Web FastCGI Service tftpuploadiperf mod_webd.TFTPUploadIperf command injection

Title source: cna
STIX 2.1

Description

A vulnerability was identified in Yealink SIP-T46U 108.86.0.118. Affected by this vulnerability is the function mod_webd.TFTPUploadIperf of the file /api/inner/tftpuploadiperf of the component Web FastCGI Service. The manipulation of the argument ip/port leads to command injection. The attack needs to be initiated within the local network. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-370866 | Yealink SIP-T46U Web FastCGI Service tftpuploadiperf mod_webd.TFTPUploadIperf command injection
https://vuldb.com/vuln/370866
Signature, Permissions Required signature permissions-required
VDB-370866 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/370866/cti
Third Party Advisory third-party-advisory
CVE-2026-12223 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-12223
Third Party Advisory third-party-advisory
Submit #834603 | yealink T46U 108.86.0.118 Command Injection
https://vuldb.com/submit/834603

Scores

CVSS v3 5.5
EPSS 0.0153
EPSS Percentile 71.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-74 CWE-77
Status published
Products (1)
Yealink/SIP-T46U 108.86.0.118
Published Jun 15, 2026
Tracked Since Jun 15, 2026