CVE-2026-0138
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Heap Overflow in LWIS IO Buffer Component

Vulnerability report for CVE-2026-0138, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Google Devices

Description

In lwis_io_buffer_write of lwis_io_buffer.c, there is a possible out of bounds write due to memory corruption. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

CVSS Scores

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Meta Information

Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-07-07
AI Q&A
2026-06-16
EPSS Evaluated
2026-07-05
NVD
EUVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the function lwis_io_buffer_write within the lwis_io_buffer.c file. It involves a possible out of bounds write caused by memory corruption.

Such a flaw can allow an attacker to write data outside the intended memory boundaries, potentially leading to unexpected behavior or system compromise.

Impact Analysis

The vulnerability can lead to local escalation of privilege, meaning an attacker with local access could gain higher system privileges.

Specifically, exploitation could result in the attacker obtaining System execution privileges, which would allow full control over the affected system.

User interaction is not required for exploitation, increasing the risk if an attacker already has local access.

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