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CVE-2019-0555

Status: ModifiedHigh (7.8)—💥 Exploit

An elevation of privilege vulnerability exists in the Microsoft XmlDocument class that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft XmlDocument Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2012, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.

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 (6)

Microsoft — Windows 10Microsoft — Windows 8.1Microsoft — Windows RT 8.1Microsoft — Windows Server 2012Microsoft — Windows Server 2016Microsoft — Windows Server 2019

CWEs

References

Raw JSON (NVD)

Show
{
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  "cveTags": [],
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          "integrityImpact": "PARTIAL",
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          "attackComplexity": "HIGH",
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  "affected": [
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      "source": "secure@microsoft.com",
      "affectedData": [
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          "versions": [
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  "published": "2019-01-08T21:29:01.003",
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      "source": "secure@microsoft.com"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-862"
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      ]
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "An elevation of privilege vulnerability exists in the Microsoft XmlDocument class that could allow an attacker to escape from the AppContainer sandbox in the browser, aka \"Microsoft XmlDocument Elevation of Privilege Vulnerability.\" This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2012, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de elevación de privilegios en la clase Microsoft XmlDocument que podría permitir a un atacante escapar del sandbox AppContainer en el navegador. Esto también se conoce como \"Microsoft XmlDocument Elevation of Privilege Vulnerability\". Esto afecta a Windows Server 2012 R2, Windows RT 8.1, Windows Server 2012, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers."
    }
  ],
  "lastModified": "2026-06-17T02:08:23.950",
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}