CVE-2023-53964: SOUND4 IMPACT/FIRST/PULSE/Eco v2.x Unauthenticated Factory Reset Vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-12-22 · updated 2026-06-17
Weakness: CWE-306

Description

SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated vulnerability in the /usr/cgi-bin/restorefactory.cgi endpoint that allows remote attackers to reset device configuration. Attackers can send a POST request to the endpoint with specific data to trigger a factory reset and bypass authentication, gaining full system control.

Affected products

Sound4 Big Voice2 Firmware: 1.30
Sound4 Big Voice4 Firmware: 1.2
Sound4 First Firmware: 2.15, 1.69
Sound4 Impact Eco Firmware: 1.16
Sound4 Impact Firmware: 2.15, 1.69
Sound4 Pulse Eco Firmware: 1.16
Sound4 Pulse Firmware: 2.15, 1.69
Sound4 Stream Extension: 2.4.29
Sound4 Wm2 Firmware: 1.11

References

https://web.archive.org/web/20221207074555/https://www.sound4.com/
https://www.exploit-db.com/exploits/51174
https://www.vulncheck.com/advisories/sound-impactfirstpulseeco-x-unauthenticated-factory-reset-vulnerability
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5742.php
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5742.php

Get alerted when CVE-2023-53964 or the next vulnerability affects your stack