CVE-2026-12221

A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/startoffset results in stack-based buffer overflow. The attack needs to be...

CVE-2026-12223 Yealink SIP-T46U Web FastCGI Service tftpuploadiperf mod_webd.TFTPUploadIperf command injection

A vulnerability was identified in Yealink SIP-T46U 108.86.0.118. Affected by this vulnerability is the function modwebd.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 need...

CVE-2026-12223

A vulnerability was identified in Yealink SIP-T46U 108.86.0.118. Affected by this vulnerability is the function modwebd.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 need...

CVE-2026-12222

CVE-2026-12222 affects Yealink SIP-T46U (firmware 108.86.0.118) via the Web FastCGI Service: function mod_webd.BlueToothTest in /api/inner/bttest, where manipulating btMac/pin/reserved can trigger a stack-based overflow. Exploitation reportedly public and feasible within a local network; vendor d...

CVE-2026-12221

Yealink SIP-T46U (version 108.86.0.118) is affected by a stack-based buffer overflow in the Firmware Chunk Upload Handler, caused by a faulty sprintf in /api/upgrade/upgrade when manipulating uid/start_offset. Exploitation requires local-network access; the exploit is publicly available. No remed...

CVE-2026-12221 Yealink SIP-T46U Firmware Chunk Upload upgrade sprintf stack-based overflow

A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/startoffset results in stack-based buffer overflow. The attack needs to be...

CVE-2026-12220 Yealink SIP-T46U Firmware Chunk Upload handler accupgradebychunk mod_upgrade.SparePartsUpload stack-based overflow

A vulnerability has been found in Yealink SIP-T46U 108.86.0.118. This affects the function modupgrade.SparePartsUpload of the file /api/upgrade/accupgradebychunk of the component Firmware Chunk Upload handler. Such manipulation of the argument uid leads to stack-based buffer overflow. The attack...

EUVD-2026-36693

A vulnerability has been found in Yealink SIP-T46U 108.86.0.118. This affects the function modupgrade.SparePartsUpload of the file /api/upgrade/accupgradebychunk of the component Firmware Chunk Upload handler. Such manipulation of the argument uid leads to stack-based buffer overflow. The attack...

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

A flaw has been found in Yealink SIP-T46U 108.86.0.118. The impacted element is the function moddiagnose.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...

CVE-2026-12219

CVE-2026-12219 concerns Yealink SIP-T46U (108.86.0.118) involving the Web FastCGI Service. The vulnerable element is the function mod_diagnose.CommandShellByType in /api/diagnosis/start, where manipulating the Time argument leads to command injection. The flaw enables a remote attacker to execute...

CVE-2026-12219

A flaw has been found in Yealink SIP-T46U 108.86.0.118. The impacted element is the function moddiagnose.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...

CVE-2026-12218

The CVE-2026-12218 entry concerns Yealink SIP-T46U (firmware version 108.87.50.1) with a vulnerability in Web FastCGI Service, affecting the function StartReportInformation in /api/inner/beforewifitest. The issue is triggered by manipulating the port argument, causing a stack-based buffer overflo...

CVE-2026-12218 Yealink SIP-T46U Web FastCGI Service beforewifitest StartReportInformation stack-based overflow

A vulnerability was detected in Yealink SIP-T46U 108.87.50.1. The affected element is the function StartReportInformation of the file /api/inner/beforewifitest of the component Web FastCGI Service. The manipulation of the argument port results in stack-based buffer overflow. Access to the local...

EUVD-2026-36691

A vulnerability was detected in Yealink SIP-T46U 108.87.50.1. The affected element is the function StartReportInformation of the file /api/inner/beforewifitest of the component Web FastCGI Service. The manipulation of the argument port results in stack-based buffer overflow. Access to the local...

PT-2026-49182

Name of the Vulnerable Software and Affected Versions Yealink SIP-T46U version 108.86.0.118 Description Command injection is possible in the Web FastCGI Service via the mod webd.TFTPUploadIperf function within the '/api/inner/tftpuploadiperf' endpoint. This occurs when the ip/port argument is...

PT-2026-49138

Name of the Vulnerable Software and Affected Versions Yealink SIP-T46U version 108.86.0.118 Description A stack-based buffer overflow exists in the Web FastCGI Service component within the mod webd.BlueToothTest function of the /api/inner/bttest endpoint. This issue occurs when manipulating the...