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 via unspecified vectors.

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.

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.

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.

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.

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.

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 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 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 path traversal (relative path information in the file parameter of the corresponding POST request).

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).

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

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.

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

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.

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.

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.

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.

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.

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.

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.