Skip to main content

Advanced Systemcare Ultimate CVE-2021-21786

HIGH
Exposed IOCTL with Insufficient Access Control (CWE-782)
2021-07-07 talos-cna@cisco.com
Privilege Escalation Advanced Systemcare Ultimate
7.8
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Jul 07, 2021 - 17:15 nvd
HIGH 7.8

DescriptionNVD

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.

AnalysisAI

A privilege escalation vulnerability exists in the IOCTL 0x9c406144 handling of IOBit Advanced SystemCare Ultimate 14.2.0.220. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-782. 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. Affected products include: Iobit Advanced Systemcare Ultimate.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

More in Advanced Systemcare Ultimate

View all
CVE-2021-21789 HIGH POC
8.8 Jul 07

A privilege escalation vulnerability exists in the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Priv
CVE-2021-21788 HIGH POC
8.8 Jul 07

A privilege escalation vulnerability exists in the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Priv
CVE-2021-21787 HIGH POC
8.8 Jul 07

A privilege escalation vulnerability exists in the way IOBit Advanced SystemCare Ultimate 14.2.0.220 driver handles Priv
CVE-2018-9044 HIGH POC
7.8 Mar 27

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_win10_x64.sys) allows local users to cause a denial

CVE-2018-9043 HIGH POC
7.8 Mar 27

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_win10_x64.sys) allows local users to cause a denial

CVE-2018-9042 HIGH POC
7.8 Mar 27

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_win10_x64.sys) allows local users to cause a denial

CVE-2018-9041 HIGH POC
7.8 Mar 27

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_win10_x64.sys) allows local users to cause a denial

CVE-2018-9040 HIGH POC
7.8 Mar 27

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_win10_x64.sys) allows local users to cause a denial

CVE-2018-9007 HIGH POC
7.8 Mar 25

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_x86.sys) allows local users to cause a denial of ser
CVE-2018-9006 HIGH POC
7.8 Mar 25

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_win7_x64.sys) allows local users to cause a denial o
CVE-2018-9005 HIGH POC
7.8 Mar 25

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_win7_x64.sys) allows local users to cause a denial o
CVE-2018-9004 HIGH POC
7.8 Mar 25

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_x86.sys) allows local users to cause a denial of ser

Same weakness CWE-782 – Exposed IOCTL with Insufficient Access Control

View all
CVE-2021-21551 HIGH POC
7.8
CVE-2024-39251 CRITICAL POC
10.0
CVE-2024-32370 CRITICAL POC
9.8
CVE-2024-33220 HIGH POC
8.8
CVE-2021-21789 HIGH POC
8.8
CVE-2021-21788 HIGH POC
8.8
CVE-2021-21787 HIGH POC
8.8
CVE-2026-57851 HIGH POC
8.5

Same technique Privilege Escalation

View all
CVE-2025-47812 CRITICAL POC
10.0
CVE-2013-0422 CRITICAL POC
9.8
CVE-2013-0632 CRITICAL POC
9.8
CVE-2017-5689 CRITICAL POC
9.8
CVE-2017-12635 CRITICAL POC
9.8
CVE-2016-10372 CRITICAL POC
9.8
CVE-2014-9583 CRITICAL POC
10.0
CVE-2012-0297 CRITICAL POC
10.0

Share

CVE-2021-21786 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy