Vulnerability · Published Jun 21, 2025 · Assigned by zdi

CVE-2025-5820Sony XAV-AX8500 Bluetooth ERTM Channel Authentication Bypass Vulnerability

Medium 6.3

In plain English

A medium-severity authentication bypass in XAV-AX8500 from Sony. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 3.0)6.3Medium

Exploit odds (30 days)0.4%top 70.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Sony XAV-AX8500 Bluetooth ERTM Channel Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected Sony XAV-AX8500 devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of Bluetooth ERTM channel communication. The issue results from improper channel data initialization. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-26285.

Affected products (as reported)

Vendor	Product	Versions
Sony	XAV-AX8500	2.00.01

Weakness: CWE-288 · Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

ZDI-25-358 x_research-advisory
vendor-provided URL vendor-advisory