What is the CVSS score of CVE-2025-20730?

CVE-2025-20730 has a CVSS 3.1 base score of 6.7 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Yocto are affected by CVE-2025-20730?

CVE-2025-20730 presents notable security risk, a improper authentication vulnerability rated CVSS 6.7. This could allow unauthorized access to protected resources.

How to fix or mitigate CVE-2025-20730?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Audit authentication configurations.

Yocto CVE-2025-20730

MEDIUM

Improper Authentication (CWE-287)

2025-11-04 security@mediatek.com

Authentication Bypass Privilege Escalation Yocto Rdk B Android Openwrt Google

6.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.7 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:20 vuln.today

CVE Published

Nov 04, 2025 - 07:15 nvd

MEDIUM 6.7

DescriptionCVE.org

In preloader, there is a possible escalation of privilege due to an insecure default value. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10068463; Issue ID: MSV-4141.

AnalysisAI

In preloader, there is a possible escalation of privilege due to an insecure default value. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. In preloader, there is a possible escalation of privilege due to an insecure default value. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10068463; Issue ID: MSV-4141. Affected products include: Linuxfoundation Yocto, Rdkcentral Rdk-B, Google Android, Openwrt.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.