MSRC_CVE-2026-47288
Vulnerability from csaf_microsoft - Published: 2026-06-09 07:00 - Updated: 2026-06-09 07:00Summary
Windows Kerberos Key Distribution Center (KDC) Remote Code Execution
Severity
Critical
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.
CWE-190
- Integer Overflow or Wraparound
Affected products
Fixed
12 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2012 6.2.9200.26132
Windows Server 2012
|
6.2.9200.26132 | ||
|
Windows Server 2012 (Server Core installation) 6.2.9200.26132
Windows Server 2012 (Server Core installation)
|
6.2.9200.26132 | ||
|
Windows Server 2012 R2 6.3.9600.23228
Windows Server 2012 R2
|
6.3.9600.23228 | ||
|
Windows Server 2012 R2 (Server Core installation) 6.3.9600.23228
Windows Server 2012 R2 (Server Core installation)
|
6.3.9600.23228 | ||
|
Windows Server 2016 10.0.14393.9234
Windows Server 2016
|
10.0.14393.9234 | ||
|
Windows Server 2016 (Server Core installation) 10.0.14393.9234
Windows Server 2016 (Server Core installation)
|
10.0.14393.9234 | ||
|
Windows Server 2019 10.0.17763.8880
Windows Server 2019
|
10.0.17763.8880 | ||
|
Windows Server 2019 (Server Core installation) 10.0.17763.8880
Windows Server 2019 (Server Core installation)
|
10.0.17763.8880 | ||
|
Windows Server 2022 10.0.20348.5256
Windows Server 2022
|
10.0.20348.5256 | ||
|
Windows Server 2022 (Server Core installation) 10.0.20348.5256
Windows Server 2022 (Server Core installation)
|
10.0.20348.5256 | ||
|
Windows Server 2025 10.0.26100.32995
Windows Server 2025
|
10.0.26100.32995 | ||
|
Windows Server 2025 (Server Core installation) 10.0.26100.32995
Windows Server 2025 (Server Core installation)
|
10.0.26100.32995 |
Known affected
12 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2025 (Server Core installation) <10.0.26100.32995
Windows Server 2025 (Server Core installation)
|
<10.0.26100.32995 |
Vendor Fix
fix
|
|
|
Windows Server 2025 <10.0.26100.32995
Windows Server 2025
|
<10.0.26100.32995 |
Vendor Fix
fix
|
|
|
Windows Server 2022 (Server Core installation) <10.0.20348.5256
Windows Server 2022 (Server Core installation)
|
<10.0.20348.5256 |
Vendor Fix
fix
|
|
|
Windows Server 2022 <10.0.20348.5256
Windows Server 2022
|
<10.0.20348.5256 |
Vendor Fix
fix
|
|
|
Windows Server 2019 (Server Core installation) <10.0.17763.8880
Windows Server 2019 (Server Core installation)
|
<10.0.17763.8880 |
Vendor Fix
fix
|
|
|
Windows Server 2019 <10.0.17763.8880
Windows Server 2019
|
<10.0.17763.8880 |
Vendor Fix
fix
|
|
|
Windows Server 2016 (Server Core installation) <10.0.14393.9234
Windows Server 2016 (Server Core installation)
|
<10.0.14393.9234 |
Vendor Fix
fix
|
|
|
Windows Server 2016 <10.0.14393.9234
Windows Server 2016
|
<10.0.14393.9234 |
Vendor Fix
fix
|
|
|
Windows Server 2012 R2 (Server Core installation) <6.3.9600.23228
Windows Server 2012 R2 (Server Core installation)
|
<6.3.9600.23228 |
Vendor Fix
fix
|
|
|
Windows Server 2012 R2 <6.3.9600.23228
Windows Server 2012 R2
|
<6.3.9600.23228 |
Vendor Fix
fix
|
|
|
Windows Server 2012 (Server Core installation) <6.2.9200.26132
Windows Server 2012 (Server Core installation)
|
<6.2.9200.26132 |
Vendor Fix
fix
|
|
|
Windows Server 2012 <6.2.9200.26132
Windows Server 2012
|
<6.2.9200.26132 |
Vendor Fix
fix
|
Threats
Impact
Remote Code Execution
Exploit Status
Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely
References
7 references
Acknowledgments
Microsoft
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"aggregate_severity": {
"namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
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"notes": [
{
"category": "general",
"text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
"title": "Additional Resources"
},
{
"category": "legal_disclaimer",
"text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
"title": "Disclaimer"
},
{
"category": "general",
"text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
"title": "Customer Action"
}
],
"publisher": {
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"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2026-47288 Windows Kerberos Key Distribution Center (KDC) Remote Code Execution - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47288"
},
{
"category": "self",
"summary": "CVE-2026-47288 Windows Kerberos Key Distribution Center (KDC) Remote Code Execution - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-47288.json"
},
{
"category": "external",
"summary": "Microsoft Exploitability Index",
"url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
},
{
"category": "external",
"summary": "Microsoft Support Lifecycle",
"url": "https://support.microsoft.com/lifecycle"
},
{
"category": "external",
"summary": "Common Vulnerability Scoring System",
"url": "https://www.first.org/cvss"
}
],
"title": "Windows Kerberos Key Distribution Center (KDC) Remote Code Execution",
"tracking": {
"current_release_date": "2026-06-09T07:00:00.000Z",
"generator": {
"date": "2026-06-09T17:04:14.630Z",
"engine": {
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"version": "1.0"
}
},
"id": "msrc_CVE-2026-47288",
"initial_release_date": "2026-06-09T07:00:00.000Z",
"revision_history": [
{
"date": "2026-06-09T07:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
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{
"category": "product_version_range",
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"product": {
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"product_id": "6"
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"category": "product_name",
"name": "Windows Server 2019 (Server Core installation)"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c10.0.20348.5256",
"product": {
"name": "Windows Server 2022 \u003c10.0.20348.5256",
"product_id": "4"
}
},
{
"category": "product_version",
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"product": {
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},
{
"branches": [
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"product_id": "1"
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},
{
"category": "product_version",
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"product": {
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"category": "product_name",
"name": "Windows Server 2025 (Server Core installation)"
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{
"branches": [
{
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"product_id": "2"
}
},
{
"category": "product_version",
"name": "10.0.26100.32995",
"product": {
"name": "Windows Server 2025 10.0.26100.32995",
"product_id": "12436"
}
}
],
"category": "product_name",
"name": "Windows Server 2025"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c10.0.14393.9234",
"product": {
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"product_id": "8"
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},
{
"category": "product_version",
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},
{
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"product": {
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"category": "product_name",
"name": "Windows Server 2016 (Server Core installation)"
},
{
"branches": [
{
"category": "product_version_range",
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"product_id": "12"
}
},
{
"category": "product_version",
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"product": {
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"product_id": "10"
}
},
{
"category": "product_version",
"name": "6.3.9600.23228",
"product": {
"name": "Windows Server 2012 R2 6.3.9600.23228",
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},
{
"category": "product_version",
"name": "6.3.9600.23228",
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"product_id": "10543"
}
}
],
"category": "product_name",
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]
},
"vulnerabilities": [
{
"cve": "CVE-2026-47288",
"cwe": {
"id": "CWE-190",
"name": "Integer Overflow or Wraparound"
},
"notes": [
{
"category": "general",
"text": "Microsoft",
"title": "Assigning CNA"
},
{
"category": "faq",
"text": "An attacker who is already authenticated to the domain could send specially crafted authentication-related data to a domain controller, causing the affected Windows component to incorrectly handle memory. This could allow the attacker to disrupt the service or gain higher privileges on the domain controller without any user interaction.",
"title": "How could an attacker exploit this vulnerability?"
},
{
"category": "faq",
"text": "Successful exploitation of this vulnerability requires an attacker to prepare the target environment to improve exploit reliability.",
"title": "According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?"
}
],
"product_status": {
"fixed": [
"10378",
"10379",
"10483",
"10543",
"10816",
"10855",
"11571",
"11572",
"11923",
"11924",
"12436",
"12437"
],
"known_affected": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2026-47288 Windows Kerberos Key Distribution Center (KDC) Remote Code Execution - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47288"
},
{
"category": "self",
"summary": "CVE-2026-47288 Windows Kerberos Key Distribution Center (KDC) Remote Code Execution - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-47288.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-09T07:00:00.000Z",
"details": "10.0.17763.8880:Security Update:https://support.microsoft.com/help/5094123",
"product_ids": [
"6",
"5"
],
"url": "https://support.microsoft.com/help/5094123"
},
{
"category": "vendor_fix",
"date": "2026-06-09T07:00:00.000Z",
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"product_ids": [
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"3"
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},
{
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"date": "2026-06-09T07:00:00.000Z",
"details": "10.0.26100.32995:Security Update:https://support.microsoft.com/help/5094125",
"product_ids": [
"1",
"2"
],
"url": "https://support.microsoft.com/help/5094125"
},
{
"category": "vendor_fix",
"date": "2026-06-09T07:00:00.000Z",
"details": "10.0.14393.9234:Security Update:https://support.microsoft.com/help/5094122",
"product_ids": [
"8",
"7"
],
"url": "https://support.microsoft.com/help/5094122"
},
{
"category": "vendor_fix",
"date": "2026-06-09T07:00:00.000Z",
"details": "6.2.9200.26132:Monthly Rollup:https://support.microsoft.com/help/5094042",
"product_ids": [
"12",
"11"
],
"url": "https://support.microsoft.com/help/5094042"
},
{
"category": "vendor_fix",
"date": "2026-06-09T07:00:00.000Z",
"details": "6.3.9600.23228:Monthly Rollup:https://support.microsoft.com/help/5094041",
"product_ids": [
"10",
"9"
],
"url": "https://support.microsoft.com/help/5094041"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"environmentalsScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 6.2,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12"
]
}
],
"threats": [
{
"category": "impact",
"details": "Remote Code Execution"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely"
}
],
"title": "Windows Kerberos Key Distribution Center (KDC) Remote Code Execution"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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