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CVE-2025-4421 EfiSmiServices: gEfiSmmCpuProtocol, SMM memory corruption vulnerabilities in SMM module

🗓️ 30 Jul 2025 00:39:28Reported by InsydeType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

Vulnerability CVE-2025-4421 affects Lenovo EfiSmiServices with memory corruption risks in SMM module.

Related
Affected
Refs
[
  {
    "defaultStatus": "unknown",
    "product": "InsydeH2O",
    "vendor": "Insyde Software",
    "versions": [
      {
        "lessThan": "L05.05.40.011803.172079",
        "status": "affected",
        "version": "Feature developed for Lenovo",
        "versionType": "custom"
      }
    ]
  }
]

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14 Aug 2025 05:57Current
CVSS 3.18.2
EPSS0.00258
9