CVE-2026-20423

HIGH
2026-03-02 [email protected]
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 02, 2026 - 09:16 nvd
HIGH 7.8

Tags

Privilege Escalation Nbiot Sdk

Description

In wlan STA driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00465314; Issue ID: MSV-4956.

Analysis

Nbiot Sdk contains a vulnerability that allows attackers to local escalation of privilege with User execution privileges needed (CVSS 7.8).

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Remediation

Within 24 hours: Inventory all systems and applications using Nbiot SDK and assess exposure scope; disable Nbiot SDK features if non-critical. Within 7 days: Implement network segmentation to isolate affected systems; restrict local access privileges and enforce principle of least privilege for user accounts. …

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0

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CVE-2026-20423 vulnerability details – vuln.today
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