CVE-2023-43959: Yealink SIP-t19p-e2 Firmware

High severity, CVSS 8.8. EPSS: 1.6% chance of exploitation in the next 30 days.

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.

Affected products

• Yealink SIP-t19p-e2 Firmware: version 53.84.0.15 only

Published 2023-10-17. Last modified 2026-06-17.