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CVE-2019-18845

Status: ModifiedHigh (7.1)—💥 PoC

The MsIo64.sys and MsIo32.sys drivers in Patriot Viper RGB before 1.1 allow local users (including low integrity processes) to read and write to arbitrary memory locations, and consequently gain NT AUTHORITY\SYSTEM privileges, by mapping \Device\PhysicalMemory into the calling process via ZwOpenSection and ZwMapViewOfSection.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (1)

Patriotmemory — Viper RGB Firmware

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2019-18845",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 3.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
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    "cvssMetricV31": [
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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          "privilegesRequired": "LOW",
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        "impactScore": 5.2,
        "exploitabilityScore": 1.8
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  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
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  "published": "2019-11-09T18:15:10.950",
  "references": [
    {
      "url": "https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-012.md",
      "source": "cve@mitre.org"
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    {
      "url": "https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-012.md",
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  "vulnStatus": "Modified",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
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    }
  ],
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      "lang": "en",
      "value": "The MsIo64.sys and MsIo32.sys drivers in Patriot Viper RGB before 1.1 allow local users (including low integrity processes) to read and write to arbitrary memory locations, and consequently gain NT AUTHORITY\\SYSTEM privileges, by mapping \\Device\\PhysicalMemory into the calling process via ZwOpenSection and ZwMapViewOfSection."
    },
    {
      "lang": "es",
      "value": "Los controladores MsIo64.sys y MsIo32.sys en Patriot Viper RGB versiones anteriores a 1.1, permiten a usuarios locales (incluyendo procesos de baja integridad) leer y escribir en ubicaciones de memoria arbitrarias y, en consecuencia, alcanzar privilegios NT AUTHORITY\\SYSTEM, mediante la asignación de  \\Device\\PhysicalMemory en el proceso de llamada por medio de las funciones  ZwOpenSection y ZwMapViewOfSection."
    }
  ],
  "lastModified": "2026-06-17T02:25:27.353",
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  "sourceIdentifier": "cve@mitre.org"
}