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High severity · published Jun 21, 2025
CVE-2025-5820
Sony XAV-AX8500 Bluetooth ERTM Channel Authentication Bypass Vulnerability
8.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XA
XAV-AX8500 · Sony
2.00.01 · source: vendor
XF
Xav-ax8500 Firmware · Sony
2.00.1 before 3.02.00 · source: NVD
Affected product
XA
XAV-AX8500
Sony
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5820
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-5820
Patch
https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-ax8500/software/00344092
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-25-358/
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