CVE-2025-8656 | BDVDB-2026-288595 Detail

KenwoodDMX958XR

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.

Impact#

Per CVSS v3.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: physical.

Weaknesses#

CWE-693 Protection Mechanism Failure

References#

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

Exploit#

No public exploit known

History#

Version 12025-08-06Record published in the CVE List.

Published

Published: 2025-08-06
Last modified: 2025-08-06

Vendor information

Vendor: Kenwood
Product: DMX958XR

All Kenwood vulnerabilities

Score

6.8 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 19.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
1.0.0509.3100
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

Not available

CVSS v3.0

6.8 Medium

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

Metric breakdown
Attack Vector	Physical
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).