MSRC_CVE-2025-48802
Vulnerability from csaf_microsoft - Published: 2025-07-08 07:00 - Updated: 2025-07-08 07:00Summary
Windows SMB Server Spoofing 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-295
- Improper Certificate Validation
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2022 10.0.20348.3932
Windows Server 2022
|
10.0.20348.3932 | ||
|
Windows Server 2022 (Server Core installation) 10.0.20348.3932
Windows Server 2022 (Server Core installation)
|
10.0.20348.3932 | ||
|
Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.5624
Windows 11 Version 22H2 for ARM64-based Systems
|
10.0.22621.5624 | ||
|
Windows 11 Version 22H2 for x64-based Systems 10.0.22621.5624
Windows 11 Version 22H2 for x64-based Systems
|
10.0.22621.5624 | ||
|
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.5624
Windows 11 Version 23H2 for ARM64-based Systems
|
10.0.22631.5624 | ||
|
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.5624
Windows 11 Version 23H2 for x64-based Systems
|
10.0.22631.5624 | ||
|
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1732
Windows Server 2022, 23H2 Edition (Server Core installation)
|
10.0.25398.1732 |
Known affected
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.1732
Windows Server 2022, 23H2 Edition (Server Core installation)
|
<10.0.25398.1732 |
Vendor Fix
fix
|
|
|
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.5624
Windows 11 Version 23H2 for x64-based Systems
|
<10.0.22631.5624 |
Vendor Fix
fix
|
|
|
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.5624
Windows 11 Version 23H2 for ARM64-based Systems
|
<10.0.22631.5624 |
Vendor Fix
fix
|
|
|
Windows 11 Version 22H2 for x64-based Systems <10.0.22621.5624
Windows 11 Version 22H2 for x64-based Systems
|
<10.0.22621.5624 |
Vendor Fix
fix
|
|
|
Windows 11 Version 22H2 for ARM64-based Systems <10.0.22621.5624
Windows 11 Version 22H2 for ARM64-based Systems
|
<10.0.22621.5624 |
Vendor Fix
fix
|
|
|
Windows Server 2022 (Server Core installation) <10.0.20348.3932
Windows Server 2022 (Server Core installation)
|
<10.0.20348.3932 |
Vendor Fix
fix
|
|
|
Windows Server 2022 <10.0.20348.3932
Windows Server 2022
|
<10.0.20348.3932 |
Vendor Fix
fix
|
Threats
Impact
Spoofing
Exploit Status
Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely
References
7 references
Acknowledgments
Anonymous
{
"document": {
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{
"names": [
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]
}
],
"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": {
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"tlp": {
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},
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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": {
"category": "vendor",
"contact_details": "secure@microsoft.com",
"name": "Microsoft Security Response Center",
"namespace": "https://msrc.microsoft.com"
},
"references": [
{
"category": "self",
"summary": "CVE-2025-48802 Windows SMB Server Spoofing Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48802"
},
{
"category": "self",
"summary": "CVE-2025-48802 Windows SMB Server Spoofing Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-48802.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 SMB Server Spoofing Vulnerability",
"tracking": {
"current_release_date": "2025-07-08T07:00:00.000Z",
"generator": {
"date": "2025-08-23T00:39:18.811Z",
"engine": {
"name": "MSRC Generator",
"version": "1.0"
}
},
"id": "msrc_CVE-2025-48802",
"initial_release_date": "2025-07-08T07:00:00.000Z",
"revision_history": [
{
"date": "2025-07-08T07:00:00.000Z",
"legacy_version": "1",
"number": "1",
"summary": "Information published."
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c10.0.20348.3932",
"product": {
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"product_id": "7"
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},
{
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"category": "product_name",
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},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c10.0.22621.5624",
"product": {
"name": "Windows 11 Version 22H2 for ARM64-based Systems \u003c10.0.22621.5624",
"product_id": "5"
}
},
{
"category": "product_version",
"name": "10.0.22621.5624",
"product": {
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"product_id": "12085"
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"category": "product_name",
"name": "Windows 11 Version 22H2 for ARM64-based Systems"
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"product_id": "4"
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{
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"name": "10.0.22621.5624",
"product": {
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"product_id": "12086"
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"category": "product_name",
"name": "Windows 11 Version 22H2 for x64-based Systems"
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{
"branches": [
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"product": {
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"product_id": "3"
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{
"category": "product_version",
"name": "10.0.22631.5624",
"product": {
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"product_id": "12242"
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"category": "product_name",
"name": "Windows 11 Version 23H2 for ARM64-based Systems"
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{
"branches": [
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"category": "product_version_range",
"name": "\u003c10.0.22631.5624",
"product": {
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"product_id": "2"
}
},
{
"category": "product_version",
"name": "10.0.22631.5624",
"product": {
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"product_id": "12243"
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}
],
"category": "product_name",
"name": "Windows 11 Version 23H2 for x64-based Systems"
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{
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"category": "product_name",
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}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-48802",
"cwe": {
"id": "CWE-295",
"name": "Improper Certificate Validation"
},
"notes": [
{
"category": "general",
"text": "Microsoft",
"title": "Assigning CNA"
}
],
"product_status": {
"fixed": [
"11923",
"11924",
"12085",
"12086",
"12242",
"12243",
"12244"
],
"known_affected": [
"1",
"2",
"3",
"4",
"5",
"6",
"7"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2025-48802 Windows SMB Server Spoofing Vulnerability - HTML",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48802"
},
{
"category": "self",
"summary": "CVE-2025-48802 Windows SMB Server Spoofing Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-48802.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2025-07-08T07:00:00.000Z",
"details": "10.0.20348.3932:Security Update:https://support.microsoft.com/help/5062572",
"product_ids": [
"7"
],
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},
{
"category": "vendor_fix",
"date": "2025-07-08T07:00:00.000Z",
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"product_ids": [
"6"
],
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},
{
"category": "vendor_fix",
"date": "2025-07-08T07:00:00.000Z",
"details": "10.0.22621.5624:Security Update:https://support.microsoft.com/help/5062552",
"product_ids": [
"5",
"4"
],
"url": "https://support.microsoft.com/help/5062552"
},
{
"category": "vendor_fix",
"date": "2025-07-08T07:00:00.000Z",
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"product_ids": [
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"2"
],
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},
{
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"date": "2025-07-08T07:00:00.000Z",
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"product_ids": [
"1"
],
"url": "https://support.microsoft.com/help/5062570"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"environmentalsScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
"temporalScore": 5.7,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"6",
"7"
]
}
],
"threats": [
{
"category": "impact",
"details": "Spoofing"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
}
],
"title": "Windows SMB Server Spoofing 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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