CVE-2006-4927

Status: ModifiedMedium (4.6)—💥 Exploit

The (a) NAVENG (NAVENG.SYS) and (b) NAVEX15 (NAVEX15.SYS) device drivers 20061.3.0.12 and later, as used in Symantec AntiVirus and security products, allow local users to gain privileges by overwriting critical system addresses using a crafted Irp to the IOCTL functions (1) 0x222AD3, (2) 0x222AD7, and (3) 0x222ADB.

CVSS

Version: 2.0
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Base score: 4.6

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 1.75%
Percentile among all scored CVEs: 77
Score date: 10/8/2026

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.

Published on Exploit-DB · Symantec AntiVirus - IOCTL Kernel Privilege Escalation (1) (8/26/2006)
Published on Exploit-DB · Symantec AntiVirus - IOCTL Kernel Privilege Escalation (2) (8/26/2006)

Affected technologies (2)

Symantec — Naveng Driver Symantec — Navex15 Driver

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2006-4927",
  "cveTags": [],
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      {
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": true,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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              "version": "n/a"
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  "published": "2006-10-10T04:06:00.000",
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  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
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  "descriptions": [
    {
      "lang": "en",
      "value": "The (a) NAVENG (NAVENG.SYS) and (b) NAVEX15 (NAVEX15.SYS) device drivers 20061.3.0.12 and later, as used in Symantec AntiVirus and security products, allow local users to gain privileges by overwriting critical system addresses using a crafted Irp to the IOCTL functions (1) 0x222AD3, (2) 0x222AD7, and (3) 0x222ADB."
    },
    {
      "lang": "es",
      "value": "Los controladores de dispositivo de (a) NAVENG (NAVENG.SYS) y (b) NAVEX15 (NAVEX15.SYS) 20061.3.0.12 y posteriores, utilizados en Symantec AntiVirus y en productos de seguridad, permiten a usuarios locales escalar privilegios sobreescribiendo direcciones críticas del sistema utilizando un Irp (paquete de petición de Entrada/salida) creado artesanalmente para las funciones IOCTL (1) 0x222AD3, (2) 0x222AD7, y (3) 0x222ADB."
    }
  ],
  "lastModified": "2026-06-16T22:30:09.327",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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            {
              "criteria": "cpe:2.3:a:symantec:navex15_driver:*:*:*:*:*:*:*:*",
              "vulnerable": true,
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            }
          ],
          "operator": "OR"
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  "evaluatorSolution": "Update 20061.3.0.12 has been released by the vendor for each vulnerable driver.\r\nAdditionally, an update to the virus definitions (October 4, 2006 revision 9 or later) is required."
}