CVE-2023-53955

9.3 criticalEPSS 0.9%

Critical (9.3) in sound4. EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.3 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8 critical

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

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-639
Published: 2025-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

sound4:big_voice2_firmware
sound4:big_voice4_firmware
sound4:first_firmware
sound4:impact_eco_firmware
sound4:impact_firmware
sound4:pulse_eco_firmware
sound4:pulse_firmware
sound4:stream_extension
sound4:wm2_firmware

References

Check your stack JSON