What is CVE-2025-5820?

CVE-2025-5820 is a high-severity vulnerability in Sony Xav-ax8500, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2025-06-21.

How severe is CVE-2025-5820?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Sony Xav-ax8500

CVE-2025-5820

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 v…

EPSS: 0.003 (22.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Sony Xav-ax8500 — versions 2.00.01
Sony Xav-ax8500_firmware

Weakness classification (CWE)

CWE-288 — Authentication Bypass Using an Alternate Path or Channel

References

zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
zdi-disclosures@trendmicro.com (vendor-advisory, Patch)

Frequently asked questions

What is CVE-2025-5820?: CVE-2025-5820 is a high-severity vulnerability in Sony Xav-ax8500, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 8.8/10. Published 2025-06-21.
How severe is CVE-2025-5820?: High severity. CVSS v3 base score is 8.8 out of 10.