CVE-2020-16894
Status: ModifiedHigh (7.7)—
<p>A denial of service vulnerability exists when Windows Network Address Translation (NAT) on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash.</p> <p>To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash.</p> <p>The update addresses the vulnerability by modifying how Windows NAT accesses the host.</p>
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Base score: 7.7
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 4.94%
- Percentile among all scored CVEs: 92
- Score date: 10/16/2026
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 (2)
CWEs
- NVD-CWE-noinfo
References
Raw JSON (NVD)
Show
{
"id": "CVE-2020-16894",
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"version": "2.0.3",
"timestamp": "2024-02-27T17:10:36.835173Z"
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"obtainAllPrivilege": false,
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"published": "2020-10-16T23:15:13.163",
"references": [
{
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"tags": [
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"source": "secure@microsoft.com"
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16894",
"tags": [
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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],
"vulnStatus": "Modified",
"weaknesses": [
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"value": "<p>A denial of service vulnerability exists when Windows Network Address Translation (NAT) on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash.</p>\n<p>To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash.</p>\n<p>The update addresses the vulnerability by modifying how Windows NAT accesses the host.</p>"
},
{
"lang": "es",
"value": "Se presenta una vulnerabilidad de ejecución de código remota cuando Windows Network Address Translation (NAT) presenta un fallo al manejar apropiadamente el tráfico UDP, también se conoce como \"Windows NAT Remote Code Execution Vulnerability\""
}
],
"lastModified": "2026-06-17T02:58:12.737",
"configurations": [
{
"nodes": [
{
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}