Sony XAV-AX8500 Bluetooth SDP Protocol integer overflow

Summaryinfo

A vulnerability described as very critical has been identified in Sony XAV-AX8500. This issue affects some unknown processing of the component Bluetooth SDP Protocol Handler. Such manipulation leads to integer overflow. This vulnerability is listed as CVE-2025-5478. The attack must be carried out from within the local network. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Sony XAV-AX8500 (unknown version). Affected by this issue is an unknown code block of the component Bluetooth SDP Protocol Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Sony XAV-AX8500 Bluetooth SDP Protocol Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Sony XAV-AX8500 devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the Bluetooth SDP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-26288.

The advisory is available at zerodayinitiative.com. This vulnerability is handled as CVE-2025-5478 since 06/02/2025. The exploitation is known to be easy. Access to the local network is required for this attack. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/08/2025).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-18883). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Sony

Name

• XAV-AX8500

License

• commercial

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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