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TI-2025-04918 Aliases CVE-2025-5477GHSA-g2j4-v7hf-2xq4

Heap-based buffer overflow in Sony XAV-AX8500

Priority LOW 35CWE-122Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

Sony XAV-AX8500 Bluetooth L2CAP Protocol Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Sony XAV-AX8500 devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of the Bluetooth L2CAP protocol. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the elysian-bt-service process. Was ZDI-CAN-26286.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00377 31st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SonyXAV-AX85002.00.01—No fix listedCNA
  • XAV-AX8500 VendorSony Affected 2.00.01 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:sony:xav-ax8500_firmware:*:*:*:*:*:*:*:*2.00.01 to before 3.02.00VulnerableSony
cpe:2.3:h:sony:xav-ax8500:-:*:*:*:*:*:*:*not specified by NVDRunning onSony
  • cpe:2.3:o:sony:xav-ax8500_firmware:*:*:*:*:*:*:*:* Versions 2.00.01 to before 3.02.00 Vulnerable ·Sony
  • cpe:2.3:h:sony:xav-ax8500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Sony

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Sony XAV-AX8500 — vendor-provided URL

    6 records Highest priority Priority MEDIUM 1 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2025-04919 Integer overflow in Sony XAV-AX8500Priority MEDIUM 40
    • TI-2025-05248 Authentication bypass in Sony XAV-AX8500Priority LOW 38
    • TI-2025-04917 Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass VulnerabilityPriority LOW 38
    Show all 6 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-5477
  2. 2026-10-03 Alias added: GHSA-g2j4-v7hf-2xq4

References

Patch 1

Advisory 1

  • TI-2025-04919 Integer overflow in Sony XAV-AX8500 CVSS 3.0HIGH 8.8
  • TI-2025-05248 Authentication bypass in Sony XAV-AX8500 CVSS 3.1HIGH 8.8
  • TI-2025-04917 Sony XAV-AX8500 Bluetooth Improper Isolation Authentication Bypass Vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-04920 Heap-based buffer overflow in Sony XAV-AX8500 CVSS 3.0HIGH 7.5
  • TI-2025-04916 Integer overflow in Sony XAV-AX8500 CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences