# CVE-2023-53964: SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated vulnerability in the /usr/cgi-bin/restorefactory.cgi…

Source: https://junglewise.ai/threats/cve-2023-53964-sound4-impact-first-pulse-eco-v2-x-contains-an-unauthenticated  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-22  
License: CC BY 4.0 with a link back

CVE-2023-53964 · Severity: critical · CVSS 9.8 · Published 2025-12-22

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.

Technologies: [Sound4 Big Voice2](https://junglewise.ai/threats/technologies/big-voice2), [Sound4 Big Voice2 Firmware](https://junglewise.ai/threats/technologies/big-voice2-firmware), [Sound4 Big Voice4](https://junglewise.ai/threats/technologies/big-voice4), [Sound4 Big Voice4 Firmware](https://junglewise.ai/threats/technologies/big-voice4-firmware), [Sound4 First](https://junglewise.ai/threats/technologies/first), [Sound4 First Firmware](https://junglewise.ai/threats/technologies/first-firmware), [Sound4 Impact](https://junglewise.ai/threats/technologies/sound4-impact), [Sound4 Impact Eco](https://junglewise.ai/threats/technologies/impact-eco), [Sound4 Impact Eco Firmware](https://junglewise.ai/threats/technologies/impact-eco-firmware), [Sound4 Impact Firmware](https://junglewise.ai/threats/technologies/impact-firmware), [Sound4 Pulse](https://junglewise.ai/threats/technologies/pulse), [Sound4 Pulse Eco](https://junglewise.ai/threats/technologies/pulse-eco), [Sound4 Pulse Eco Firmware](https://junglewise.ai/threats/technologies/pulse-eco-firmware), [Sound4 Pulse Firmware](https://junglewise.ai/threats/technologies/pulse-firmware), [Sound4 Stream Extension](https://junglewise.ai/threats/technologies/stream-extension), [Sound4 Wm2](https://junglewise.ai/threats/technologies/wm2), [Sound4 Wm2 Firmware](https://junglewise.ai/threats/technologies/wm2-firmware). Vendors: [Sound4](https://junglewise.ai/threats/vendors/sound4).

## Quick answers

**Is CVE-2023-53964 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2023-53964 being exploited in the wild.

**How severe is CVE-2023-53964?** Critical severity, with a CVSS score of 9.8, published 22 December 2025.

**Which products and versions are affected?** Sound4 Big Voice2, Sound4 Big Voice2 Firmware, Sound4 Big Voice4, Sound4 Big Voice4 Firmware and 13 more. The advisory does not name versions.

**Is there a fix for CVE-2023-53964?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2023-53964?** Check whether you run Sound4 Big Voice2, Sound4 Big Voice2 Firmware, Sound4 Big Voice4 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Sound4 Big Voice2
- Sound4 Big Voice2 Firmware
- Sound4 Big Voice4
- Sound4 Big Voice4 Firmware
- Sound4 First
- Sound4 First Firmware
- Sound4 Impact
- Sound4 Impact Eco
- Sound4 Impact Eco Firmware
- Sound4 Impact Firmware
- Sound4 Pulse
- Sound4 Pulse Eco
- Sound4 Pulse Eco Firmware
- Sound4 Pulse Firmware
- Sound4 Stream Extension
- Sound4 Wm2
- Sound4 Wm2 Firmware

## Related threats

- [SOUND4 IMPACT/FIRST/PULSE/Eco firmware upload unauthenticated RCE](https://junglewise.ai/threats/cve-2022-50796-sound4-impact-first-pulse-eco-firmware-upload-unauthenticated-rce)
- [SOUND4 Server Service 4.1.102 contains an unquoted service path vulnerability that allows local non-privileged users…](https://junglewise.ai/threats/cve-2023-53965-sound4-server-service-4-1-102-contains-an-unquoted-service-path)
- [SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an unauthenticated directory traversal vulnerability that allows remote…](https://junglewise.ai/threats/cve-2023-53962-sound4-impact-first-pulse-eco-v2-x-contains-an-unauthenticated)
- [SOUND4 IMPACT/FIRST/PULSE/Eco version 2.x contains an SQL injection vulnerability in the 'index.php' authentication…](https://junglewise.ai/threats/cve-2023-53960-sound4-impact-first-pulse-eco-version-2-x-contains-an-sql)
- [SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an insecure direct object reference vulnerability that allows attackers to…](https://junglewise.ai/threats/cve-2023-53955-sound4-impact-first-pulse-eco-v2-x-contains-an-insecure-direct)