Yealink

Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the /sm/api/v1/firewall/zone/services URI, without authentication.

Directory Traversal in the web interface of the Tiptel IP 286 with firmware version 2.61.13.10 allows attackers to overwrite arbitrary files on the phone via the Ringtone upload function.

An issue was discovered in Yealink Configuration Encrypt Tool (AES version) and Yealink Configuration Encrypt Tool (RSA version before 1.2). There is a single hardcoded key (used to encrypt provisioning documents) across customers' installations.

Yealink Meeting Server before v26.0.0.66 was discovered to contain an OS command injection vulnerability via the file upload interface.

Directory Traversal vulnerability in Contacts File Upload Interface in Yealink W60B version 77.83.0.85, allows attackers to gain sensitive information and cause a denial of service (DoS).

An issue in Yealink T21P_E2 Phone 52.84.0.15 allows a remote normal privileged attacker to execute arbitrary code via a crafted request the ping function of the diagnostic component.

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.

Yealink phones through 2019-08-04 have an issue with OpenVPN file upload. They execute tar as root to extract files, but do not validate the extraction directory. Creating a tar file with ../../../../ allows replacement of almost any file on a phone. This leads to password…

Yealink phones through 2019-08-04 do not properly check user roles in POST requests. Consequently, the default User account (with a password of user) can make admin requests via HTTP.

A CSRF (Cross Site Request Forgery) in the web interface of the Yeahlink Ultra-elegant IP Phone SIP-T41P firmware version 66.83.0.35 allows a remote attacker to trigger code execution or settings modification on the device by providing a crafted link to the victim.

The network diagnostic function (ping) in the Yeahlink Ultra-elegant IP Phone SIP-T41P (firmware 66.83.0.35) allows a remote authenticated attacker to trigger OS commands or open a reverse shell via command injection.

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…

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…

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…

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.…

The diagnostics web interface in the Yeahlink Ultra-elegant IP Phone SIP-T41P (firmware 66.83.0.35) does not validate (escape) the path information (path traversal), which allows an authenticated remote attacker to get access to privileged information (e.g., /etc/passwd) via…

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 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.

An issue discovered in Yealink VP59 Teams Editions with firmware version 91.15.0.118 allows a physically proximate attacker to gain control of an account via a flaw in the factory reset procedure.

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…

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…

Yealink RPS before 2025-05-26 does not prevent OpenAPI access by frozen enterprise accounts, allowing unauthorized access to deactivated interfaces.

A weakness has been identified in Yealink MeetingBar A30 133.321.0.3. This issue affects some unknown processing of the component Diagnostic Handler. This manipulation causes command injection. It is feasible to perform the attack on the physical device. The exploit has been…

Yealink T21P_E2 Phone 52.84.0.15 is vulnerable to Directory Traversal. A remote normal privileged attacker can read arbitrary files via a crafted request result read function of the diagnostic component.

In Yealink RPS before 2025-05-26, the certificate upload function does not properly validate certificate content, potentially allowing invalid certificates to be uploaded.

The Yealink RPS API before 2025-05-26 lacks rate limiting, potentially enabling information disclosure via excessive requests.

A weakness has been identified in Yealink SIP-T21P E2 52.84.0.15. Impacted is an unknown function of the component Local Directory Page. This manipulation causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been made available to the…

Yealink RPS before 2025-06-04 lacks SN verification attempt limits, enabling brute-force enumeration (last five digits).

An issue in Yealink VP59 Microsoft Teams Phone firmware 91.15.0.118 (fixed in 122.15.0.142) allows a physically proximate attacker to disable the phone lock via the Walkie Talkie menu option.

cgi-bin/cgiServer.exx in Yealink VoIP Phone SIP-T38G allows remote authenticated users to execute arbitrary commands by calling the system method in the body of a request, as demonstrated by running unauthorized services, changing directory permissions, and modifying files.

Multiple cross-site scripting (XSS) vulnerabilities in Local Phone book and Blacklist form in Yealink VOIP Phones allow remote authenticated users to inject arbitrary web script or HTML via the user field to cgi-bin/ConfigManApp.com.

Absolute path traversal vulnerability in Yealink VoIP Phone SIP-T38G allows remote authenticated users to read arbitrary files via a full pathname in the dumpConfigFile function in the command parameter to cgi-bin/cgiServer.exx.

Directory traversal vulnerability in Yealink VoIP Phone SIP-T38G allows remote authenticated users to read arbitrary files via a .. (dot dot) in the page parameter to cgi-bin/cgiServer.exx.

CRLF injection vulnerability in Yealink VoIP Phones with firmware 28.72.0.2 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the model parameter to servlet.

config/.htpasswd in Yealink IP Phone SIP-T38G has a hardcoded password of (1) user (s7C9Cx.rLsWFA) for the user account, (2) admin (uoCbM.VEiKQto) for the admin account, and (3) var (jhl3iZAe./qXM) for the var account, which makes it easier for remote attackers to obtain access…

Cross-site scripting (XSS) vulnerability in Yealink VoIP Phones with firmware 28.72.0.2 allows remote attackers to inject arbitrary web script or HTML via the model parameter to servlet.