SecuriTricks - CVE-2025-8656

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.

Product(s) Impacted

Vendor	Product	Versions
Jvckenwood	Dmx958xr Firmware Dmx958xr	1.0.0509.3100 -

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-693

Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
o	jvckenwood	dmx958xr_firmware	1.0.0509.3100	/	/	/	/	/	/	/
h	jvckenwood	dmx958xr	-	/	/	/	/	/	/	/

References

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

CVSS Score

6.8 / 10

CVSS Data - 3.0

Attack Vector: PHYSICAL
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

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

View Vector String

Timeline

Published: Aug. 6, 2025, 2:15 a.m.
Last Modified: Aug. 7, 2025, 4:49 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

zdi-disclosures@trendmicro.com

CVE-2025-8656