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CVE Record

CVE-2018-8998: In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_x86.sys) allows local users to cause a...

In Advanced SystemCare Ultimate 11.0.1.58, the driver file (Monitor_x86.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9c4060cc.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE affects Advanced SystemCare Ultimate 11.0.1.58 through a kernel driver, Monitor_x86.sys. A local user may be able to crash the system with a blue screen. The public record also says unspecified other impact is possible, but does not define it.

Executive priority

Treat this as a targeted endpoint stability risk, not a confirmed remote compromise issue. Prioritize systems where shared workstations, kiosk use, or low-trust local accounts make local denial of service more plausible.

Technical view

Monitor_x86.sys fails to validate input values for IOCTL 0x9c4060cc. The documented impact is local denial of service through BSOD, with possible unspecified additional impact. The source bundle provides no CVSS score, CWE, vendor advisory, patch details, or confirmed broader exploitation details.

Likely exposure

Exposure appears limited to systems running Advanced SystemCare Ultimate 11.0.1.58 with the vulnerable Monitor_x86.sys driver present or loaded. The bundle does not provide complete affected CPEs or version ranges beyond that named version.

Exploitation context

The issue requires local user access according to the CVE description. A public GitHub reference exists for a BSOD proof of concept. The CVE is not marked KEV, and the provided sources do not show active exploitation in the wild.

Researcher notes

The public evidence is thin: no CVSS vector, CWE, CPEs, advisory, or patch statement are included. The GitHub reference indicates a BSOD proof of concept, but the bundle does not substantiate privilege escalation or active exploitation.

Mitigation direction

  • Check vendor guidance for fixed or supported versions.
  • Remove or disable the software if it is not required.
  • Limit local user access on affected endpoints.
  • Prioritize replacement if the product version is unsupported.
  • Monitor for crashes involving Monitor_x86.sys.

Validation and detection

  • Inventory endpoints for Advanced SystemCare Ultimate 11.0.1.58.
  • Confirm whether Monitor_x86.sys is present or loaded.
  • Review endpoint crash logs for Monitor_x86.sys references.
  • Check vendor or support channels for remediation guidance.
  • Verify affected systems do not grant unnecessary local access.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2018-8998 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.