CVE-2025-8656 — MEDIUM (6.8)

Vulnerability 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.

CVSS Score

6.8

MEDIUM

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

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Jvckenwood	Dmx958Xr Firmware	1.0.0509.3100
Jvckenwood	Dmx958Xr	-

Related Weaknesses (CWE)

CWE-693

References

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

FAQ

What is CVE-2025-8656?

CVE-2025-8656 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Kenwood DMX958XR Protection Mechanism Failure Software Downgrade Vulnerability. This vulnerability allows physically present attackers to downgrade software on affected installations of Kenwood DMX958...

How severe is CVE-2025-8656?

CVE-2025-8656 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-8656?

Check the references section above for vendor advisories and patch information. Affected products include: Jvckenwood Dmx958Xr Firmware, Jvckenwood Dmx958Xr.