CVE-2024-22830

Local privilege escalation via kernel-trusted process handles

Published May 1, 2024 · Updated Jul 9, 2026

Improper access control in Tencent ACE-BASE.sys 1.0.2202.6217 allows local users to gain SYSTEM privileges through driver IOCTLs. Command 0x80002064 calls ObOpenObjectByPointer with AccessMode set to KernelMode, then returns the unrestricted process handle to user mode. A non-administrator account can request maximum permissions, inject code into a SYSTEM process, or terminate protected antimalware processes.

CVSS severity5.3
Medium
EPSS probability0.14%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Tencent ACE-BASE.sys 1.0.2202.6217 allows local users to gain SYSTEM privileges through driver IOCTLs. Command 0x80002064 calls ObOpenObjectByPointer with AccessMode set to KernelMode, then returns the unrestricted process handle to user mode. A non-administrator account can request maximum permissions, inject code into a SYSTEM process, or terminate protected antimalware processes.

The record

CVE
CVE-2024-22830
Published
May 1, 2024
Updated
Jul 9, 2026
Vendor
Tencent
Product
ACE-BASE.sys
Classifications
CWE-284, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.2202.6217

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Tencent · ACE-BASE.sysversion=1.0.2202.6217

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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