#VU111141 Heap-based buffer overflow in XAV-AX8500 - CVE-2025-5479

Vulnerability identifier: #VU111141

Vulnerability risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-5479

CWE-ID: CWE-122

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
XAV-AX8500
Hardware solutions / Other hardware appliances

Vendor: Sony Corporation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the implementation of the Bluetooth AVCTP protocol. A remote attacker on the local network can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

XAV-AX8500: before 3.02.00

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External links
https://www.zerodayinitiative.com/advisories/ZDI-25-356/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.