CVE-2025-8656: dmx958xr (CVSS 6.8)

Description

Kenwood DMX958XR Protection Mechanism Failure Software Downgrade Vulnerability. This vulnerability allows physically present attackers to downgrade software on affected installations of Kenwood DMX958XR devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the libSystemLib library. The issue results from the lack of proper validation of version information before performing an update. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-26355.

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CVSS v3.1 Score

6.8

MEDIUM

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-693 CWE-693

Affected Products

Vendor	Product	Versions
jvckenwood	dmx958xr_firmware	All
jvckenwood	dmx958xr	All

References

Other References

https://www.zerodayinitiative.com/advisories/ZDI-25-804/

Frequently Asked Questions

What is CVE-2025-8656? +

Kenwood DMX958XR Protection Mechanism Failure Software Downgrade Vulnerability. This vulnerability allows physically present attackers to downgrade software on affected installations of Kenwood DMX958XR devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the libSystemLib library. The issue results from the lack of proper validation of version information before performing an update. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-26355. It has a CVSS v3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2025-8656? +

CVE-2025-8656 has a CVSS v3.1 score of 6.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-8656? +

CVE-2025-8656 affects products from jvckenwood, specifically: dmx958xr, dmx958xr_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-8656? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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