CVE-2019-0821
Status: ModifiedMedium (6.5)—
An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, aka 'Windows SMB Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-0703, CVE-2019-0704.
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Base score: 6.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 6.22%
- Percentile among all scored CVEs: 93
- Score date: 10/9/2026
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).
Affected technologies (8)
CWEs
- NVD-CWE-noinfo
References
Raw JSON (NVD)
Show
{
"id": "CVE-2019-0821",
"cveTags": [],
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"authentication": "SINGLE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
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"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
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"affected": [
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"affectedData": [
{
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{
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{
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{
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"version": "n/a"
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}
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}
],
"published": "2019-04-09T03:29:00.967",
"references": [
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0821",
"tags": [
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"Vendor Advisory"
],
"source": "secure@microsoft.com"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0821",
"tags": [
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],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, aka 'Windows SMB Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-0703, CVE-2019-0704."
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad de divulgación de información en la manera en que el servidor SMB de Windows maneja ciertas peticiones, también se conoce como \"Windows SMB Information Disclosure Vulnerability\". Este ID de CVE es diferente de los CVE-2019-0703, CVE-2019-0704."
}
],
"lastModified": "2026-06-17T02:08:58.790",
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}