What’s Vulnerable › Vulnerabilities

CVE-2018-16217

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-05-29 · updated 2026-06-17
• Weakness: CWE-78

Description

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.

Affected products

• Yealink Ultra-Elegant Ip Phone Sip-T41P Firmware: 66.83.0.35

References

• https://www.sit.fraunhofer.de/de/securitytestlab/
• https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_Yealink_Ultra-elegantIPPhone_SIPT41P.pdf?_=1549375271
• https://www.sit.fraunhofer.de/de/securitytestlab/
• https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_Yealink_Ultra-elegantIPPhone_SIPT41P.pdf?_=1549375271

Get alerted when CVE-2018-16217 or the next vulnerability affects your stack