Common Weakness Enumeration
CWE-782
AllowedExposed IOCTL with Insufficient Access Control
Abstraction: Variant · Status: Draft
The product implements an IOCTL with functionality that should be restricted, but it does not properly enforce access control for the IOCTL.
52 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
EPSS
VEX
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)
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
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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
EPSS
VEX
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)
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
1 reference
| URL | Tags |
|---|---|
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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
EPSS
VEX
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)
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
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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
EPSS
VEX
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)
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.talosintelligence.com/vulnerability_r… | x_refsource_MISC |
Impacted products
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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
EPSS
VEX
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)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-07 12:41 UTC
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00018601… | x_refsource_MISC |
| http://packetstormsecurity.com/files/162604/Dell-… | x_refsource_MISC |
| http://packetstormsecurity.com/files/162739/DELL-… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Date Public
2021-05-03 18:30
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CVE-2019-25764 (GCVE-0-2019-25764)
Vulnerability from cvelistv5 – Published: 2026-07-17 06:00 – Updated: 2026-07-17 10:10
VLAI
EPSS
VEX
Summary
**UNSUPPORTED WHEN ASSIGNED** Exposed IOCTL with Insufficient Access Control in the ASUS AURA SYNC driver allows a local user to bypass the driver's verification and invoke arbitrary IOCTLs, resulting in privilege escalation.
Refer to the 'End-of-Life Notice and Driver Update for Legacy ASUS Drivers ' section on the ASUS Security Advisory for more information.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 10:10 UTC
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
1 reference
Impacted products
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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)
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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)
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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)
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"published": "2026-06-25T09:31:17Z",
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GHSA-6JPP-G7H2-CH5P
Vulnerability from github – Published: 2026-07-17 09:31 – Updated: 2026-07-17 09:31
VLAI
Details
UNSUPPORTED WHEN ASSIGNED Exposed IOCTL with Insufficient Access Control in the ASUS AURA SYNC driver allows a local user to bypass the driver's verification and invoke arbitrary IOCTLs, resulting in privilege escalation.
Refer to the 'End-of-Life Notice and Driver Update for Legacy ASUS Drivers ' section on the ASUS Security Advisory for more information.
Severity
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"modified": "2026-07-17T09:31:21Z",
"published": "2026-07-17T09:31:21Z",
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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.