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Vulnerability record · CVE-2023-53964 · published 22 December 2025

CVE-2023-53964: Sound4 impact firmware missing authentication for critical function vulnerability

Sound4 · Impact Firmware

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.

8.8 CVSS 4.0 High EPSS 0.98% · top 39.3% CWE-306 · Missing authentication for critical function
8.8CVSS 4.0 base score
0.98%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
5References, 3 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/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:

Affected products

9 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2022-50794Sound4 impact firmware os command injection vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco versions 2.x and below contain an unauthenticated command injection vulnerability in the username parameter. Attackers …EPSS 3.7%9.3CVE-2022-50796Sound4 impact firmware path traversal vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco <=2.x contains an unauthenticated remote code execution vulnerability in the firmware upload functionality with path tr…EPSS 1.6%9.3CVE-2022-50696Sound4 first firmware hard-coded credentials vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco versions 2.x and below contain hardcoded credentials embedded in server binaries that cannot be modified through normal…EPSS 0.60%9.3CVE-2023-53960Sound4 first firmware sql injection vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco version 2.x contains an SQL injection vulnerability in the 'index.php' authentication mechanism that allows attackers t…EPSS 0.74%9.3CVE-2023-53963Sound4 impact firmware os command injection vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary s…EPSS 3.4%9.3CVE-2023-53955Sound4 stream extension insecure direct object reference vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an insecure direct object reference vulnerability that allows attackers to bypass authorization and acces…EPSS 0.85%8.8CVE-2022-50694Sound4 impact firmware sql injection vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco <=2.x contains an SQL injection vulnerability in the 'username' POST parameter of index.php that allows attackers to ma…EPSS 0.89%8.8CVE-2023-53962Sound4 impact firmware path traversal vulnerabilitySOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated directory traversal vulnerability that allows remote attackers to write arbitrary file…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2023-53964), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.