CVE-2022-50696· NVD / CVE Program· CNA VulnCheck

SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x Hardcoded Credentials Authentication Bypass

SOUND4 IMPACT/FIRST/PULSE/Eco versions 2.x and below contain hardcoded credentials embedded in server binaries that cannot be modified through normal device operations. Attackers can leverage these static credentials to gain unauthorized access to the device across Linux and Windows distributions without requiring user interaction.

CriticalCVSS 9.3 · v4.0—No exploit No fix recorded

Noroxi analysis

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Published: Dec 30, 2025
Updated: Jun 17, 2026
EPSS: 0.6% · 46th percentile
CWE: CWE-798

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Action score

Monitor

Low priority for now.

CVSS: 37 / 40 · 9.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.6%

CISA SSVC decision

Exploitation: proof of concept
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · VulnCheck: 9.3; NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

Vendor	Product	CPE
sound4	first firmware	cpe:2.3:o:sound4:first_firmware
sound4	first	cpe:2.3:h:sound4:first
sound4	impact eco firmware	cpe:2.3:o:sound4:impact_eco_firmware
sound4	impact eco	cpe:2.3:h:sound4:impact_eco
sound4	pulse eco firmware	cpe:2.3:o:sound4:pulse_eco_firmware
sound4	pulse eco	cpe:2.3:h:sound4:pulse_eco
sound4	big voice4 firmware	cpe:2.3:o:sound4:big_voice4_firmware
sound4	big voice4	cpe:2.3:h:sound4:big_voice4
sound4	big voice2 firmware	cpe:2.3:o:sound4:big_voice2_firmware
sound4	big voice2	cpe:2.3:h:sound4:big_voice2
sound4	wm2 firmware	cpe:2.3:o:sound4:wm2_firmware
sound4	wm2	cpe:2.3:h:sound4:wm2

and 5 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

sound4 big voice2 firmware1.30
sound4 big voice4 firmware1.2
sound4 first firmware1.69
sound4 first firmware2.15
sound4 impact eco firmware1.16
sound4 impact firmware1.69
sound4 impact firmware2.15
sound4 pulse eco firmware1.16
sound4 pulse firmware1.69
sound4 pulse firmware2.15
sound4 stream extension2.4.29
sound4 wm2 firmware1.11

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

Kantar Media WM2
- 1.11affected
SOUND4 Ltd. BigVoice2
- 1.30affected
SOUND4 Ltd. BigVoice4
- 1.2affected
SOUND4 Ltd. Impact/Pulse Eco
- 1.16affected
SOUND4 Ltd. Impact/Pulse/First
- Version 2: 1.1/2.15affected
SOUND4 Ltd. Stream
- 1.1/2.4.29affected

Same product

sound4: all records

Other highest-scoring records for the same primary product.

CVE-2023-53960SOUND4 IMPACT/FIRST/PULSE/Eco v2.x SQL Injection via Authentication Bypass
37Monitor
CVE-2025-63220The Sound4 FIRST web-based management interface is vulnerable to Remote Code Execution (RCE) via a malicious firmware update package.
28Monitor
CVE-2022-50788SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x Information Disclosure via Log Directory
27Monitor
CVE-2022-50787SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x Unauthenticated Stored Cross-Site Scripting
21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

LiquidWorm as Gjoko KrsticZero Science Labfinder

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

—

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2025-6322041 days apartThe Sound4 FIRST web-based management interface is vulnerable to Remote Code Execution (RCE) via a malicious firmware update package.
28Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-798 · Use of Hard-coded Credentials

CVSS vector

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

nvd-secondary

Root cause

For convenience in support or manufacturing, an account that is identical on every device is embedded in the software. Credentials learned from one device work on all of them.

The bug in code

The whole CWE-798 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const SUPPORT_USER = "support";2const SUPPORT_PASS = "hardcoded-password";

Fixed

1const creds = await provisioning.deviceCredentials(deviceId);2if (creds.mustRotate) await forcePasswordChange(deviceId);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

No Noroxi analysis for this record yet

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Data sources and verification

CNA: VulnCheck

CVE.org (CNA)Mar 4, 2026, 7:29 PM UTC
CISA ADPMar 4, 2026, 7:29 PM UTC
NVDJun 17, 2026, 1:24 AM UTC
FIRST EPSSSep 29, 2026, 12:00 AM UTC

Each line is when that source was last processed for this record.

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