SOUND4 IMPACT/FIRST/PULSE/Eco v2.x Authorization Bypass via Insecure Object References

published 2025-12-22 10 mo ago modified 2026-10-01 38 d ago also EUVD-2023-60244

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

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.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: total
Assessed: 10 mo ago (2025-12-22)

Exploit prediction

0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

exploit-db.com https://www.exploit-db.com/exploits/51169 referenced PoC, tagged "exploit" by a source, unverified
zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5723.php referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	9.3	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
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	4.0	9.3	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/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:X/V:X/RE:X/U:X

Affected products

SOUND4 Ltd. Impact/Pulse/First
SOUND4 Ltd. Impact/Pulse Eco
SOUND4 Ltd. BigVoice4
SOUND4 Ltd. BigVoice2
SOUND4 Ltd. Stream
Kantar Media WM2

Classification

Weakness

CWE-639 Authorization Bypass Through User-Controlled Key

References

exploit-db.com /exploits/51169
exploit, third-party-advisory, vdb-entry
zeroscience.mk /en/vulnerabilities/ZSL-2022-5723.php
third-party-advisory, exploit
web.archive.org /web/20221207074555/https://www.sound4.com/
product
vulncheck.com /advisories/sound-impactfirstpulseeco-x-authorization-bypass-via-insecure-object-references
third-party-advisory

Sources

CVE List CVE-2023-53955
NVD CVE-2023-53955

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary