CVE-2023-53955
Critical
Description
SOUND4 IMPACT/FIRST/PULSE/Eco v2.x contains an insecure direct object reference vulnerability that allows attackers to bypass authorization and access hidden system resources. Attackers can exploit the vulnerability by manipulating user-supplied input to execute privileged functionalities without proper authentication.
SeverityCritical
CVSS9.8
Exploit probability—
ProductSound4 Pulse Eco Firmware
PublishedDec 22, 2025
First seenDec 22, 2025
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sound4 pulse_eco_firmware | 1.16 | — |
| sound4 stream_extension | 2.4.29 | — |
| sound4 wm2_firmware | 1.11 | — |
| sound4 big_voice2_firmware | 1.30 | — |
| sound4 big_voice4_firmware | 1.2 | — |
| sound4 impact_eco_firmware | 1.16 | — |
| sound4 first_firmware | 1.69, 2.15 | — |
| sound4 pulse_firmware | 1.69, 2.15 | — |
| sound4 impact_firmware | 1.69, 2.15 | — |
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