CVE-2026-23365

Description

A flaw was found in the Linux kernel's kalmia USB driver. This vulnerability occurs because the driver does not properly validate the number and types of USB endpoints when a device is connected. A local attacker with a specially crafted malicious USB device could exploit this flaw, causing the kalmia driver to crash. This leads to a Denial of Service (DoS) on the affected system.

Statement

This flaw affects systems with the kalmia USB modem driver loaded. The missing endpoint validation allows a malicious USB device to cause a crash when the driver blindly accesses expected endpoints that don't exist. Physical access to connect a USB device is required. The kalmia driver is for Samsung Kalmia-based LTE modems.

Mitigation

To mitigate this issue, prevent the kalmia module from being loaded. See https://access.redhat.com/solutions/41278 for instructions.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score5.55.5N/A
Attack VectorLocalLocalN/A
Attack ComplexityLowLowN/A
Privileges RequiredLowLowN/A
User InteractionNoneNoneN/A
ScopeUnchangedUnchangedN/A
ConfidentialityNoneNoneN/A
Integrity ImpactNoneNoneN/A
Availability ImpactHighHighN/A

Vector

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

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

Understanding the Weakness (CWE)

CWE-1287

Other

Technical Impact: Varies by Context

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