CVE-2026-23862

High

Published: 16 March 2026

Published

16 March 2026

Modified

17 March 2026

KEV Added

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Patch

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CVSS Score 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0007 21.8th percentile

Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-23862 is a high-severity Command Injection (CWE-77) vulnerability in Dell ThinOS (inferred from references). Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 21.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploitation for Privilege Escalation (T1068). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly requires validation of inputs to prevent improper neutralization of special elements that enable command injection.

SI-2 Flaw Remediation good match

prevent

Mandates timely remediation of identified flaws, such as applying the vendor patch to ThinOS version 2602_10.0573 or later.

AC-6 Least Privilege partial match

prevent

Enforces least privilege to limit the impact and success of privilege escalation attempts via command injection from low-privileged local access.

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

Why these techniques?

Local command injection (CWE-77) directly enables privilege escalation from low-privileged context on the endpoint.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

Dell ThinOS 10 versions prior to ThinOS 2602_10.0573, contain an Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.

Deeper analysisAI

CVE-2026-23862 is a command injection vulnerability (CWE-77) in Dell ThinOS 10 versions prior to 2602_10.0573, stemming from improper neutralization of special elements used in a command. This flaw allows malicious input to alter command execution, as rated with a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high confidentiality, integrity, and availability impacts from a local, low-privilege attack with low complexity and no user interaction required.

A low-privileged attacker with local access to the affected ThinOS system can exploit this vulnerability to achieve elevation of privileges, potentially gaining higher-level control over the endpoint. Exploitation requires physical or network-based local access but no administrative rights initially, making it feasible in shared or compromised endpoint environments.

Dell Security Advisory DSA-2026-122, available at https://www.dell.com/support/kbdoc/en-us/000435801/dsa-2026-122, details the issue and recommends updating to ThinOS version 2602_10.0573 or later to mitigate the vulnerability.