Common Weakness Enumeration

CWE-782

Allowed

Exposed IOCTL with Insufficient Access Control

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The product implements an IOCTL with functionality that should be restricted, but it does not properly enforce access control for the IOCTL.

50 vulnerabilities reference this CWE, most recent first.

CVE-2021-21788 (GCVE-0-2021-21788)

Vulnerability from cvelistv5 – Published: 2021-07-07 16:39 – Updated: 2024-08-03 18:23
VLAI
Summary
A privilege escalation vulnerability exists in the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O write requests. During IOCTL 0x9c40a0dc, the first dword passed in the input buffer is the device port to write to and the word at offset 4 is the value to write via the OUT instruction. The OUT instruction can write one byte to the given I/O device port, potentially leading to escalated privileges of unprivileged users. A local attacker can send a malicious IRP to trigger this vulnerability.
Severity
8.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
Impacted products
Vendor Product Version
n/a Iobit Affected: IOBit Advanced SystemCare Ultimate 14.2.0.220
Show details on NVD website
To clipboard 

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CVE-2021-21787 (GCVE-0-2021-21787)

Vulnerability from cvelistv5 – Published: 2021-07-07 16:39 – Updated: 2024-08-03 18:23
VLAI
Summary
A privilege escalation vulnerability exists in the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O write requests. During IOCTL 0x9c40a0d8, the first dword passed in the input buffer is the device port to write to and the byte at offset 4 is the value to write via the OUT instruction. The OUT instruction can write one byte to the given I/O device port, potentially leading to escalated privileges of unprivileged users.
Severity
8.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
Impacted products
Vendor Product Version
n/a Iobit Affected: IOBit Advanced SystemCare Ultimate 14.2.0.220
Show details on NVD website
To clipboard 

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CVE-2021-21786 (GCVE-0-2021-21786)

Vulnerability from cvelistv5 – Published: 2021-07-07 16:49 – Updated: 2024-08-03 18:23
VLAI
Summary
A privilege escalation vulnerability exists in the IOCTL 0x9c406144 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. A specially crafted I/O request packet (IRP) can lead to increased privileges. An attacker can send a malicious IRP to trigger this vulnerability.
Severity
8.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
Impacted products
Vendor Product Version
n/a Iobit Affected: IOBit Advanced SystemCare Ultimate 14.2.0.220
Show details on NVD website
To clipboard 

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CVE-2021-21785 (GCVE-0-2021-21785)

Vulnerability from cvelistv5 – Published: 2021-08-05 20:06 – Updated: 2024-08-03 18:23
VLAI
Summary
An information disclosure vulnerability exists in the IOCTL 0x9c40a148 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. A specially crafted I/O request packet (IRP) can lead to a disclosure of sensitive information. An attacker can send a malicious IRP to trigger this vulnerability.
Severity
6.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
Impacted products
Vendor Product Version
n/a IOBit Affected: IOBit Advanced SystemCare Ultimate 14.2.0.220
Show details on NVD website
To clipboard 

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CVE-2021-21551 (GCVE-0-2021-21551)

Vulnerability from cvelistv5 – Published: 2021-05-04 15:15 – Updated: 2025-10-21 23:25
VLAI
Summary
Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.
Severity
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
Impacted products
Vendor Product Version
Dell dbutil Affected: 2.3
Create a notification for this product.
Date Public
2021-05-03 18:30
Show details on NVD website
To clipboard 

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GHSA-2PPF-G925-W5Q9

Vulnerability from github – Published: 2025-03-05 03:30 – Updated: 2025-03-05 03:30
VLAI
Details

NVIDIA Hopper HGX for 8-GPU contains a vulnerability in the GPU vBIOS that may allow a malicious actor with tenant level GPU access to write to an unsupported registry causing a bad state. A successful exploit of this vulnerability may lead to denial of service.

Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
Show details on source website
To clipboard 

{
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  "aliases": [
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    "cwe_ids": [
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    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-05T02:15:35Z",
    "severity": "MODERATE"
  },
  "details": "NVIDIA Hopper HGX for 8-GPU contains a vulnerability in the GPU vBIOS that may allow a malicious actor with tenant level GPU access to write to an unsupported registry causing a bad state. A successful exploit of this vulnerability may lead to denial of service.",
  "id": "GHSA-2ppf-g925-w5q9",
  "modified": "2025-03-05T03:30:51Z",
  "published": "2025-03-05T03:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-0141"
    },
    {
      "type": "WEB",
      "url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5561"
    }
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      "type": "CVSS_V3"
    }
  ]
}

GHSA-42G6-FX4G-4PXV

Vulnerability from github – Published: 2024-05-22 15:31 – Updated: 2024-08-20 18:31
VLAI
Details

An issue in the component AsIO64.sys of ASUSTeK Computer Inc ASUS SABERTOOTH X99 Driver v1.0.1.0 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
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    "nvd_published_at": "2024-05-22T15:15:28Z",
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  },
  "details": "An issue in the component AsIO64.sys of ASUSTeK Computer Inc ASUS SABERTOOTH X99 Driver v1.0.1.0 allows attackers to escalate privileges and execute arbitrary code via sending crafted IOCTL requests.",
  "id": "GHSA-42g6-fx4g-4pxv",
  "modified": "2024-08-20T18:31:15Z",
  "published": "2024-05-22T15:31:01Z",
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}

GHSA-62XH-MJG9-8QHV

Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-06-25 09:31
VLAI
Details

Generic IO & Memory Access driver for PCs provided by TOSHIBA CORPORATION and Dynabook Inc. exposes its IOCTL with insufficient access control. A logged-in user with no administrative privilege may access physical memory.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
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  },
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  "modified": "2026-06-25T09:31:17Z",
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GHSA-78R5-F9G4-5RVR

Vulnerability from github – Published: 2025-09-11 21:31 – Updated: 2025-09-11 21:31
VLAI
Details

A potential insufficient access control vulnerability was reported in the Lenovo Dispatcher 3.0 and Dispatcher 3.1 drivers used by some Lenovo consumer notebooks that could allow an authenticated local user to execute code with elevated privileges. The Lenovo Dispatcher 3.2 driver is not affected. This vulnerability does not affect systems when the Windows feature Core Isolation Memory Integrity is enabled. Lenovo systems preloaded with Windows 11 have this feature enabled by default.

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.3 (High)
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
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    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-11T19:15:35Z",
    "severity": "HIGH"
  },
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    },
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    }
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    },
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      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
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GHSA-7Q9H-5CWR-84VV

Vulnerability from github – Published: 2026-07-13 06:31 – Updated: 2026-07-13 06:31
VLAI
Details

The MBStorage DRAM lighting control module within Gigabyte Control Center (GCC) developed by GIGABYTE Technology has an Improper Access Control vulnerability. Authenticated local attackers can send specific IOCTL commands through the driver MyPortIO_x64.sys bundled with the module, thereby arbitrarily reading and writing physical memory and obtaining kernel-level privileges.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
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  ],
  "database_specific": {
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-13T04:16:29Z",
    "severity": "HIGH"
  },
  "details": "The MBStorage DRAM lighting control module within Gigabyte Control Center (GCC) developed by GIGABYTE Technology has an Improper Access Control vulnerability. Authenticated local attackers can send specific IOCTL commands through the driver MyPortIO_x64.sys bundled with the module, thereby arbitrarily reading and writing physical memory and obtaining kernel-level privileges.",
  "id": "GHSA-7q9h-5cwr-84vv",
  "modified": "2026-07-13T06:31:32Z",
  "published": "2026-07-13T06:31:32Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9492"
    },
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      "type": "WEB",
      "url": "https://www.twcert.org.tw/en/cp-139-11034-f7f2f-2.html"
    },
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      "url": "https://www.twcert.org.tw/tw/cp-132-11033-97316-1.html"
    }
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      "type": "CVSS_V3"
    },
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      "type": "CVSS_V4"
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}
Mitigation
Architecture and Design

In Windows environments, use proper access control for the associated device or device namespace. See References.

No CAPEC attack patterns related to this CWE.

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