What is the CVSS score of EUVD-2025-18885?

EUVD-2025-18885 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate EUVD-2025-18885?

Within 24 hours: Inventory all Sony XAV-AX8500 devices in your environment and assess network connectivity. Within 7 days: Apply the available vendor patch to all affected systems and verify successful installation. Within 30 days: Conduct post-patch validation testing and review Bluetooth pairing policies to restrict unauthorized device connections.

Xav Ax8500 Firmware EUVD-2025-18885

| CVE-2025-5475 HIGH

Integer Overflow or Wraparound (CWE-190)

2025-06-21 zdi-disclosures@trendmicro.com

RCE Xav Ax8500 Firmware Sony

7.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-190 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Integer overflow checks MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS 7.5. EPSS 0.1%. Vendor patch available.
Exploit ScenarioDerived	An attacker could exploit this vulnerability in the affected application to compromise the security of affected deployments, potentially impacting confidentiality, integrity, or availability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 15, 2026

A remote code execution vulnerability (CVSS 7.5) that allows network-adjacent attackers. High severity vulnerability requiring prompt remediation. Vendor patch is available.

Earlier versions of this analysis (1)

v1 Mar 15, 2026 - 21:35 CVSS 7.5

RemediationAI

Apply the vendor-supplied patch immediately. Consider network segmentation to limit exposure if patching is delayed.

Affected VersionsENISA

XAV-AX8500 2.00.01

Affected Packages

euvd xav_ax8500 no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-190 (Integer Overflow). CVSS 7.5 indicates high severity.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH

AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 15, 2026 - 21:35 nvd

Patch available

CVE Published

Jun 21, 2025 - 01:15 nvd

HIGH 7.5

DescriptionCVE.org

Sony XAV-AX8500 Bluetooth Packet Handling Integer 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 handling of Bluetooth packets. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the elysian-bt-service process. Was ZDI-CAN-26283.

Executive ViewAI

Why It Matters

A high-severity remote code execution vulnerability affects Sony XAV-AX8500 in-vehicle infotainment systems, allowing attackers to execute arbitrary code after pairing a malicious Bluetooth device. Organizations deploying these devices in fleet vehicles or connected car environments face potential compromise of vehicle systems and data.

Business Impact: Medium

Compensating Controls

Apply vendor patch. Interim mitigations if patching is delayed: disable Bluetooth functionality on non-critical systems, restrict physical access to prevent unauthorized device pairing, implement network segmentation to isolate affected devices from critical infrastructure, and monitor for suspicious Bluetooth connection attempts.

Threat Intelligence Overview

EPSS Score

0.1%

Top 77% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.