Yealink Vulnerabilities and Affected Products

Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow

A vulnerability was determined in Yealink SIP-T46U 108.86.0.118. Affected is the function mod_webd.BlueToothTest of the file /api/inner/bttest of the component Web FastCGI Service. Executing a manipulation of the argument btMac/pin/reserved can lead to stack-based buffer overflow. The attack needs to be done within the local network. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure and is working on a patch to fix it.

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/start_offset results in stack-based buffer overflow. The attack needs to be approached within the local network. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and is working on a patch to fix it.

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 mod_upgrade.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 can only be initiated within the local network. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure and is working on a patch to fix it.

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 network is required for this attack. The exploit is now public and may be used. The vendor was contacted early about this disclosure and is working on a patch to fix it.

Yealink RPS before 2025-06-27 allows unauthorized access to information, including AutoP URL addresses. This was fixed by deploying an enhanced authentication mechanism through a security update to all cloud instances.

Yealink Meeting Server before V26.0.0.67 allows attackers to obtain static key information from a front-end JS file and decrypt the plaintext passwords based on the obtained key information.

Yealink Meeting Server before V26.0.0.67 is vulnerable to sensitive data exposure in the server response via sending HTTP request with enterprise ID.

Directory Traversal vulnerability in Yealink VP59 v.91.15.0.118 allows a physically proximate attacker to obtain sensitive information via terms of use function in the company portal component.

Yealink Config Encrypt Tool add RSA before 1.2 has a built-in RSA key pair, and thus there is a risk of decryption by an adversary.

YeaLink SIP-TXXXP 53.84.0.15 - 'cmd' Command Injection (Authenticated)

An issue in YeaLinkSIP-T19P-E2 v.53.84.0.15 allows a remote privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.