5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.016 Low
EPSS
Percentile
87.5%
A memory corruption vulnerability exists in the Windows Server DHCP service when an attacker sends specially crafted packets to a DHCP failover server. An attacker who successfully exploited the vulnerability could cause the DHCP service to become nonresponsive.
To exploit the vulnerability, an attacker could send a specially crafted packet to a DHCP server. However, the DHCP server must be set to failover mode for the attack to succeed.
The security update addresses the vulnerability by correcting how DHCP failover servers handle network packets.
Vendor | Product | Version | CPE |
---|---|---|---|
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server | * | cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:* |
microsoft | windows_server,_version_1903 | unspecified | cpe:2.3:o:microsoft:windows_server,_version_1903:unspecified:*:*:*:*:*:*:* |
[
{
"vendor": "Microsoft",
"product": "Windows Server, version 1803 (Server Core Installation)",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_1803:*:*:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2019",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2019 (Server Core installation)",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server, version 1903 (Server Core installation)",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_1903:*:*:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2016",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2016 (Server Core installation)",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "6.2.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012 (Server Core installation)",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "6.2.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012 R2",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "6.3.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012 R2 (Server Core installation)",
"cpes": [
"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*"
],
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "6.3.0",
"lessThan": "publication",
"versionType": "custom",
"status": "affected"
}
]
}
]
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.016 Low
EPSS
Percentile
87.5%