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  4. CVE 2026 129255 coolermaster masterplus device driver
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Back to active CVEs
Critical · CVSS 9.3CVE-2026-129255

CoolerMaster MASTERPLUS+ Device Driver WinRing0x64.sys sub_11504 default permissionCVE-2026-129255

Answer in brief

CVE-2026-129255 records a Critical severity (CVSS 9.3) vulnerability in CoolerMaster MASTERPLUS+ Device Driver WinRing0x64.sys sub_11504 default permission. The current sources do not mark it as known exploited. The current feed maps CoolerMaster/MASTERPLUS+ (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 14, 2026Updated Nov 14, 2026Source checked Nov 14, 2026First seen by HOL Nov 14, 2026Material review Nov 14, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps CoolerMaster/MASTERPLUS+ (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
CoolerMaster/MASTERPLUS+generic1.9.6Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for CoolerMaster/MASTERPLUS+.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 14, 2026

Sources and claim methodology

  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source description

A vulnerability was identified in CoolerMaster MASTERPLUS+ 1.9.6. This affects the function sub_11504 in the library WinRing0x64.sys of the component Device Driver. The manipulation of the argument PhysicalAddress leads to incorrect default permissions. The attack can only be performed from a local environment. The vendor was contacted early about this disclosure but did not respond in any way.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-276, CWE-266
Source
CVE List V5
Source checked
Nov 14, 2026
References
4 linked sources
Open source record