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...

CVE-2026-12220

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-2026-12220 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-2026-12220

A vulnerability exists in Yealink SIP-T46U firmware 108.86.0.118 affecting the mod_upgrade.SparePartsUpload handler in /api/upgrade/accupgradebychunk. Manipulating the uid argument can cause a stack-based buffer overflow. Exploitation is described as local-network only, with public disclosure and...

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 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...

EUVD-2026-36692

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 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...

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...

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...

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...

PT-2026-49180

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 '/api/diagnosis/start' endpoint. The issue occurs within the mod diagnose.CommandShellByType function when the Time argument is...

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-2026-49179

Name of the Vulnerable Software and Affected Versions Yealink SIP-T46U affected versions not specified Description A stack-based buffer overflow exists in the Web FastCGI Service. The issue occurs within the StartReportInformation function located in the '/api/inner/beforewifitest' endpoint. An...

PT-2026-49181

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 Firmware Chunk Upload handler. This occurs when the uid argument is manipulated within the mod upgrade.SparePartsUpload function of the...

PT-2026-49137

Name of the Vulnerable Software and Affected Versions Yealink SIP-T46U version 108.86.0.118 Description A stack-based buffer overflow occurs in the Firmware Chunk Upload Handler component within the sprintf function of the file /api/upgrade/upgrade. This issue is triggered by manipulating the...