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Dell ThinOS CVE-2026-81046

| EUVDEUVD-2026-75573 CRITICAL
Improper Access Control (CWE-284)
2026-09-10 dell GHSA-7pgg-3gfw-qgx7
9.4
CVSS 3.1 · Vendor: dell
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Severity by source

Vendor (dell) PRIMARY
9.4 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
vuln.today AI
9.4 CRITICAL

Unauthenticated remote code execution with no user interaction gives AV:N/AC:L/PR:N/UI:N; C:H/I:H from code exec, A:L and S:U since impact stays within the application context.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (dell).

CVSS VectorVendor: dell

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Sep 10, 2026 - 16:37 vuln.today
Patch available
Sep 10, 2026 - 16:17 EUVD
CVE Published
Sep 10, 2026 - 15:44 cve.org
CRITICAL 9.4

DescriptionCVE.org

Dell ThinOS 10, versions prior to 2605_10.2616, contain a Protection Mechanism Failure vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Arbitrary Code Execution within the application context.

AnalysisAI

Arbitrary code execution in Dell ThinOS 10 (all builds prior to 2605_10.2616) allows a remote, unauthenticated attacker to run code within the application context of the affected thin client, per Dell advisory DSA-2026-389. The root cause is a protection mechanism failure (CWE-284) that bypasses an intended security control rather than exploiting a memory-corruption bug directly. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
technique details hidden
Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires only remote network access to a Dell ThinOS 10 device running a build earlier than 2605_10.2616, with no authentication and no user interaction (AV:N/AC:L/PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 9.4 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L) reflects the worst-case combination for reachability: remote, low-complexity, no privileges, and no user interaction, with high confidentiality and integrity impact and only limited availability impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: upgrade Dell ThinOS 10 to build 2605_10.2616 or later, which remediates this issue per Dell advisory DSA-2026-389 (https://www.dell.com/support/kbdoc/en-us/000502746/dsa-2026-389-security-update-for-dell-thinos-10-for-multiple-vulnerabilities). … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all Dell ThinOS 10 devices across the organization and assess network exposure to untrusted segments. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-81046 vulnerability details – vuln.today

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