CVE-2022-50796

SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x Unauthenticated Remote Code Execution via upload.cgi

SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x contains an unauthenticated remote code execution vulnerability in the firmware upload functionality with path traversal flaw. Attackers can exploit the upload.cgi script to write malicious files to the system with www-data permissions, enabling unauthorized access and code execution.

Affected

SOUND4 Ltd. · Kantar Media · Impact/Pulse/First · Impact/Pulse Eco · BigVoice4 · BigVoice2 · Stream · WM2

CVSS v4.0 VULNCHECK

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.57% chance of exploitation in the next 30 days, 75th percentile

Published

2025-12-30

Updated

2026-10-01

Proof-of-concept exploits (1)

• https://packetstormsecurity.com/files/170268/SOUND4-IMPACT-FIRST-PULSE-Eco-2.x-upload.cgi…

Security advisories

• https://exchange.xforce.ibmcloud.com/vulnerabilities/247951
• https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-unauthenticated-remote-c…
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5741.php
• https://www.sound4.com

References

• CVE Record
• NVD entry