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TI-2021-20354 Aliases CVE-2021-44968GHSA-7827-pcxj-hcmr

A Use after Free vulnerability exists in IOBit Advanced SystemCare 15 pro via requests…

Priority LOW 34CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

A Use after Free vulnerability exists in IOBit Advanced SystemCare 15 pro via requests sent in sequential order using the IOCTL driver codes, which could let a malicious user execute arbitrary code or a Denial of Service (system crash). IOCTL list: iobit_ioctl = [0x8001e01c, 0x8001e020, 0x8001e024, 0x8001e040,0x8001e044, 0x8001e048, 0x8001e04c, 0x8001e000, 0x8001e004, 0x8001e008, 0x8001e00c, 0x8001e010, 0x8001e014, 0x8001e018]

Why it matters now

EPSS 0.00431 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:iobit:advanced_systemcare:15:*:*:*:pro:*:*:*15VulnerableIObit
  • cpe:2.3:a:iobit:advanced_systemcare:15:*:*:*:pro:*:*:* Versions 15 Vulnerable ·IObit

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-44968
  2. 2026-10-03 Alias added: GHSA-7827-pcxj-hcmr

References

Exploit 1

  • TI-2018-11962 IObit Advanced SystemCare, which includes Monitor_win10_x64.sys or Monitor_win7_x64.sys… CVSS 3.0HIGH 8.8
  • TI-2022-08080 IOBit Advanced System Care (Asc.exe) 15 and Action Download Center both download… CVSS 3.1HIGH 7.8
  • TI-2020-08246 The AscRegistryFilter.sys kernel driver in IObit Advanced SystemCare 13.2 allows an… CVSS 3.1MEDIUM 6.5
  • TI-2018-11964 IObit Advanced SystemCare, which includes Monitor_win10_x64.sys or Monitor_win7_x64.sys… CVSS 3.0MEDIUM 6.5
  • TI-2020-11789 IOBit Advanced SystemCare Free 13.5.0.263 allows local users to gain privileges for file… CVSS 3.1HIGH 7.1
  • TI-2018-11963 IObit Advanced SystemCare, which includes Monitor_win10_x64.sys or Monitor_win7_x64.sys… CVSS 3.0MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences