MSRC_CVE-2025-59186
Vulnerability from csaf_microsoft - Published: 2025-10-14 07:00 - Updated: 2025-10-14 07:00Summary
Windows Kernel Information Disclosure Vulnerability
Severity
Important
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-200
- Exposure of Sensitive Information to an Unauthorized Actor
Affected products
Fixed
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2016 10.0.14393.8519
Windows Server 2016
|
10.0.14393.8519 | ||
|
Windows Server 2016 (Server Core installation) 10.0.14393.8519
Windows Server 2016 (Server Core installation)
|
10.0.14393.8519 | ||
|
Windows Server 2019 10.0.17763.7919
Windows Server 2019
|
10.0.17763.7919 | ||
|
Windows Server 2019 (Server Core installation) 10.0.17763.7919
Windows Server 2019 (Server Core installation)
|
10.0.17763.7919 | ||
|
Windows Server 2022 10.0.20348.4294
Windows Server 2022
|
10.0.20348.4294 | ||
|
Windows Server 2022 (Server Core installation) 10.0.20348.4294
Windows Server 2022 (Server Core installation)
|
10.0.20348.4294 | ||
|
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1913
Windows Server 2022, 23H2 Edition (Server Core installation)
|
10.0.25398.1913 | ||
|
Windows Server 2025 10.0.26100.6899
Windows Server 2025
|
10.0.26100.6899 | ||
|
Windows Server 2025 (Server Core installation) 10.0.26100.6899
Windows Server 2025 (Server Core installation)
|
10.0.26100.6899 |
Known affected
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2025 (Server Core installation) <10.0.26100.6899
Windows Server 2025 (Server Core installation)
|
<10.0.26100.6899 |
Vendor Fix
fix
|
|
|
Windows Server 2025 <10.0.26100.6899
Windows Server 2025
|
<10.0.26100.6899 |
Vendor Fix
fix
|
|
|
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.1913
Windows Server 2022, 23H2 Edition (Server Core installation)
|
<10.0.25398.1913 |
Vendor Fix
fix
|
|
|
Windows Server 2022 (Server Core installation) <10.0.20348.4294
Windows Server 2022 (Server Core installation)
|
<10.0.20348.4294 |
Vendor Fix
fix
|
|
|
Windows Server 2022 <10.0.20348.4294
Windows Server 2022
|
<10.0.20348.4294 |
Vendor Fix
fix
|
|
|
Windows Server 2019 (Server Core installation) <10.0.17763.7919
Windows Server 2019 (Server Core installation)
|
<10.0.17763.7919 |
Vendor Fix
fix
|
|
|
Windows Server 2019 <10.0.17763.7919
Windows Server 2019
|
<10.0.17763.7919 |
Vendor Fix
fix
|
|
|
Windows Server 2016 (Server Core installation) <10.0.14393.8519
Windows Server 2016 (Server Core installation)
|
<10.0.14393.8519 |
Vendor Fix
fix
|
|
|
Windows Server 2016 <10.0.14393.8519
Windows Server 2016
|
<10.0.14393.8519 |
Vendor Fix
fix
|
Threats
Impact
Information Disclosure
Exploit Status
Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely
References
7 references
Acknowledgments
<a href="https://twitter.com/lewislee53">Lewis Lee</a>, <a href="https://twitter.com/ver0759">Ver</a> and <a href="https://twitter.com/edwardzpeng">Zhiniang Peng of HUST</a>
{
"document": {
"acknowledgments": [
{
"names": [
"\u003ca href=\"https://twitter.com/lewislee53\"\u003eLewis Lee\u003c/a\u003e, \u003ca href=\"https://twitter.com/ver0759\"\u003eVer\u003c/a\u003e and \u003ca href=\"https://twitter.com/edwardzpeng\"\u003eZhiniang Peng of HUST\u003c/a\u003e"
]
}
],
"aggregate_severity": {
"namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
"text": "Important"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Public",
"tlp": {
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"url": "https://www.first.org/tlp/"
}
},
"lang": "en-US",
"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": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2025-59186 Windows Kernel Information Disclosure Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59186"
},
{
"category": "self",
"summary": "CVE-2025-59186 Windows Kernel Information Disclosure Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-59186.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 Kernel Information Disclosure Vulnerability",
"tracking": {
"current_release_date": "2025-10-14T07:00:00.000Z",
"generator": {
"date": "2026-02-22T17:24:07.842Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2025-59186",
"initial_release_date": "2025-10-14T07:00:00.000Z",
"revision_history": [
{
"date": "2025-10-14T07:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
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{
"category": "product_version_range",
"name": "\u003c10.0.17763.7919",
"product": {
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"product_id": "7"
}
},
{
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"product": {
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"product_id": "11571"
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"category": "product_name",
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{
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"category": "product_name",
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},
{
"branches": [
{
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"name": "\u003c10.0.20348.4294",
"product": {
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"product_id": "5"
}
},
{
"category": "product_version",
"name": "10.0.20348.4294",
"product": {
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"product_id": "11923"
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"category": "product_name",
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"product_id": "4"
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},
{
"category": "product_version",
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"product": {
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"category": "product_name",
"name": "Windows Server 2022 (Server Core installation)"
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{
"branches": [
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"product_id": "1"
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},
{
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},
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"product_id": "3"
}
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{
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"name": "10.0.25398.1913",
"product": {
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"category": "product_name",
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"product_id": "12436"
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"branches": [
{
"category": "product_version_range",
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"product_id": "9"
}
},
{
"category": "product_version",
"name": "10.0.14393.8519",
"product": {
"name": "Windows Server 2016 10.0.14393.8519",
"product_id": "10816"
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"category": "product_name",
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"branches": [
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"product_id": "8"
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{
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"product_id": "10855"
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}
],
"category": "product_name",
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}
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},
"vulnerabilities": [
{
"cve": "CVE-2025-59186",
"cwe": {
"id": "CWE-200",
"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"notes": [
{
"category": "general",
"text": "Microsoft",
"title": "Assigning CNA"
},
{
"category": "faq",
"text": "Exploiting this vulnerability could allow the disclosure of certain memory address within kernel space. Knowing the exact location of kernel memory could be potentially leveraged by an attacker for other malicious activities.",
"title": "What type of information could be disclosed by this vulnerability?"
}
],
"product_status": {
"fixed": [
"10816",
"10855",
"11571",
"11572",
"11923",
"11924",
"12244",
"12436",
"12437"
],
"known_affected": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2025-59186 Windows Kernel Information Disclosure Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59186"
},
{
"category": "self",
"summary": "CVE-2025-59186 Windows Kernel Information Disclosure Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-59186.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-14T07:00:00.000Z",
"details": "10.0.17763.7919:Security Update:https://support.microsoft.com/help/5066586",
"product_ids": [
"7",
"6"
],
"url": "https://support.microsoft.com/help/5066586"
},
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"product_ids": [
"5",
"4"
],
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"2"
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{
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"product_ids": [
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{
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"product_ids": [
"9",
"8"
],
"url": "https://support.microsoft.com/help/5066836"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"environmentalsScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 4.8,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9"
]
}
],
"threats": [
{
"category": "impact",
"details": "Information Disclosure"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
}
],
"title": "Windows Kernel Information Disclosure Vulnerability"
}
]
}
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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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