CVE-2023-43959

HIGH

YeaLinkSIP-T19P-E2 <v.53.84.0.15 - RCE

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-43959. PoCs published by tahaafarooq.

AI-analyzed exploit summary This exploit demonstrates an authenticated command injection vulnerability in YeaLink SIP-TXXXP 53.84.0.15 via the diagnostic tool's 'cmd' parameter. The PoC sends a crafted POST request to execute arbitrary commands (e.g., 'id') and retrieves the output in the HTTP response.

Description

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.

Exploits (1)

exploitdb WORKING POC
by tahaafarooq · textwebappshardware
https://www.exploit-db.com/exploits/50509

This exploit demonstrates an authenticated command injection vulnerability in YeaLink SIP-TXXXP 53.84.0.15 via the diagnostic tool's 'cmd' parameter. The PoC sends a crafted POST request to execute arbitrary commands (e.g., 'id') and retrieves the output in the HTTP response.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: YeaLink SIP-TXXXP 53.84.0.15
Auth required
Prerequisites: Authenticated session (JSESSIONID cookie) · Network access to the target device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit, Third Party Advisory, VDB Entry
https://www.exploit-db.com/exploits/50509

Scores

CVSS v3 8.8
EPSS 0.0160
EPSS Percentile 72.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-78
Status published
Products (1)
yealink/sip-t19p-e2_firmware 53.84.0.15
Published Oct 17, 2023
Tracked Since Feb 18, 2026