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.
66 vulnerabilities reference this CWE, most recent first.
CVE-2023-44976 (GCVE-0-2023-44976)
Vulnerability from cvelistv5 – Published: 2025-08-01 00:00 – Updated: 2025-08-01 14:28
VLAI
EPSS
VEX
Summary
Hangzhou Shunwang Rentdrv2 before 2024-12-24 allows local users to terminate EDR processes and possibly have unspecified other impact via DeviceIoControl with control code 0x22E010, as exploited in the wild in October 2023.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-01 14:27 UTC
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Hangzhou Shunwang | Rentdrv2 |
Affected:
1aed62a63b4802e599bbd33162319129501d603cceeb5e1eb22fd4733b3018a3
(custom)
Affected: 9165d4f3036919a96b86d24b64d75d692802c7513f2b3054b20be40c212240a5 (custom) |
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CVE-2023-35841 (GCVE-0-2023-35841)
Vulnerability from cvelistv5 – Published: 2024-05-14 14:56 – Updated: 2025-07-28 20:49
VLAI
EPSS
VEX
Title
WinFlash Driver Permissions Issue
Summary
Exposed IOCTL with Insufficient Access Control in Phoenix WinFlash Driver on Windows allows Privilege Escalation which allows for modification of system firmware.This issue affects WinFlash Driver: before 4.5.0.0.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-14 18:32 UTC
CWE
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Phoenix | WinFlash Driver |
Affected:
0 , < 4.5.0.0
(semver)
|
|
| phoenix | winflash_driver |
Affected:
0 , < 4.5.0
(custom)
cpe:2.3:a:phoenix:winflash_driver:*:*:*:*:*:*:*:* |
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CVE-2021-25695 (GCVE-0-2021-25695)
Vulnerability from cvelistv5 – Published: 2021-07-21 12:33 – Updated: 2024-08-03 20:11
VLAI
EPSS
VEX
Summary
The USB vHub in the Teradici PCOIP Software Agent prior to version 21.07.0 would accept commands from any program, which may allow an attacker to elevate privileges by changing the flow of program execution within the vHub driver.
Severity
No CVSS data available.
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control (CWE-782)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://advisory.teradici.com/security-advisories/100/ | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | - PCoIP Agent for Windows |
Affected:
21.07.0
|
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CVE-2021-21792 (GCVE-0-2021-21792)
Vulnerability from cvelistv5 – Published: 2021-08-05 20:05 – Updated: 2024-08-03 18:23
VLAI
EPSS
VEX
Summary
An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver which can result in sensitive information disclosure from the kernel. The IN instruction can read four bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.
Severity
6.5 (Medium)
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-2021-21791 (GCVE-0-2021-21791)
Vulnerability from cvelistv5 – Published: 2021-08-05 20:05 – Updated: 2024-08-03 18:23
VLAI
EPSS
VEX
Summary
An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver which can result in sensitive information disclosure from the kernel. The IN instruction can read two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.
Severity
6.5 (Medium)
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-2021-21790 (GCVE-0-2021-21790)
Vulnerability from cvelistv5 – Published: 2021-08-05 20:04 – Updated: 2024-08-03 18:23
VLAI
EPSS
VEX
Summary
An information disclosure vulnerability exists in the the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Privileged I/O read requests. A specially crafted I/O request packet (IRP) can lead to privileged reads in the context of a driver which can result in sensitive information disclosure from the kernel. The IN instruction can read two bytes from the given I/O device, potentially leaking sensitive device data to unprivileged users.
Severity
6.5 (Medium)
CWE
- CWE-782 - Exposed IOCTL with Insufficient Access Control
Assigner
References
1 reference
| URL | Tags |
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Impacted products
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CVE-2021-21789 (GCVE-0-2021-21789)
Vulnerability from cvelistv5 – Published: 2021-07-07 16:40 – 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 0x9c40a0e0, the first dword passed in the input buffer is the device port to write to and the dword at offset 4 is the value to write via the OUT instruction. 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 |
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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 |
|---|---|
| https://talosintelligence.com/vulnerability_repor… | x_refsource_MISC |
Impacted products
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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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"confidentialityImpact": "HIGH",
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"privilegesRequired": "LOW",
"scope": "CHANGED",
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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.