MSRC_CVE-2025-49751
Vulnerability from csaf_microsoft - Published: 2025-08-12 07:00 - Updated: 2025-08-12 07:00| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2016 10.0.14393.8330
Windows Server 2016
|
10.0.14393.8330 | ||
|
Windows 10 Version 1607 for x64-based Systems 10.0.14393.8330
Windows 10 Version 1607 for x64-based Systems
|
10.0.14393.8330 | ||
|
Windows Server 2016 (Server Core installation) 10.0.14393.8330
Windows Server 2016 (Server Core installation)
|
10.0.14393.8330 | ||
|
Windows 10 Version 1809 for x64-based Systems 10.0.17763.7678
Windows 10 Version 1809 for x64-based Systems
|
10.0.17763.7678 | ||
|
Windows Server 2019 10.0.17763.7678
Windows Server 2019
|
10.0.17763.7678 | ||
|
Windows Server 2019 (Server Core installation) 10.0.17763.7678
Windows Server 2019 (Server Core installation)
|
10.0.17763.7678 | ||
|
Windows Server 2022 10.0.20348.4052
Windows Server 2022
|
10.0.20348.4052 | ||
|
Windows Server 2022 (Server Core installation) 10.0.20348.4052
Windows Server 2022 (Server Core installation)
|
10.0.20348.4052 | ||
|
Windows 10 Version 21H2 for x64-based Systems 10.0.19044.6216
Windows 10 Version 21H2 for x64-based Systems
|
10.0.19044.6216 | ||
|
Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.5768
Windows 11 Version 22H2 for ARM64-based Systems
|
10.0.22621.5768 | ||
|
Windows 11 Version 22H2 for x64-based Systems 10.0.22621.5768
Windows 11 Version 22H2 for x64-based Systems
|
10.0.22621.5768 | ||
|
Windows 10 Version 22H2 for x64-based Systems 10.0.19045.6216
Windows 10 Version 22H2 for x64-based Systems
|
10.0.19045.6216 | ||
|
Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.5768
Windows 11 Version 23H2 for ARM64-based Systems
|
10.0.22631.5768 | ||
|
Windows 11 Version 23H2 for x64-based Systems 10.0.22631.5768
Windows 11 Version 23H2 for x64-based Systems
|
10.0.22631.5768 | ||
|
Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1791
Windows Server 2022, 23H2 Edition (Server Core installation)
|
10.0.25398.1791 | ||
|
Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.4946
Windows 11 Version 24H2 for ARM64-based Systems
|
10.0.26100.4946 | ||
|
Windows 11 Version 24H2 for x64-based Systems 10.0.26100.4946
Windows 11 Version 24H2 for x64-based Systems
|
10.0.26100.4946 | ||
|
Windows Server 2025 10.0.26100.4946
Windows Server 2025
|
10.0.26100.4946 | ||
|
Windows Server 2025 (Server Core installation) 10.0.26100.4946
Windows Server 2025 (Server Core installation)
|
10.0.26100.4946 |
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Windows Server 2025 (Server Core installation) <10.0.26100.4946
Windows Server 2025 (Server Core installation)
|
<10.0.26100.4946 |
Vendor Fix
fix
Vendor Fix
fix
|
|
|
Windows Server 2025 <10.0.26100.4946
Windows Server 2025
|
<10.0.26100.4946 |
Vendor Fix
fix
Vendor Fix
fix
|
|
|
Windows 11 Version 24H2 for x64-based Systems <10.0.26100.4946
Windows 11 Version 24H2 for x64-based Systems
|
<10.0.26100.4946 |
Vendor Fix
fix
Vendor Fix
fix
|
|
|
Windows 11 Version 24H2 for ARM64-based Systems <10.0.26100.4946
Windows 11 Version 24H2 for ARM64-based Systems
|
<10.0.26100.4946 |
Vendor Fix
fix
Vendor Fix
fix
|
|
|
Windows Server 2022, 23H2 Edition (Server Core installation) <10.0.25398.1791
Windows Server 2022, 23H2 Edition (Server Core installation)
|
<10.0.25398.1791 |
Vendor Fix
fix
|
|
|
Windows 11 Version 23H2 for x64-based Systems <10.0.22631.5768
Windows 11 Version 23H2 for x64-based Systems
|
<10.0.22631.5768 |
Vendor Fix
fix
|
|
|
Windows 11 Version 23H2 for ARM64-based Systems <10.0.22631.5768
Windows 11 Version 23H2 for ARM64-based Systems
|
<10.0.22631.5768 |
Vendor Fix
fix
|
|
|
Windows 10 Version 22H2 for x64-based Systems <10.0.19045.6216
Windows 10 Version 22H2 for x64-based Systems
|
<10.0.19045.6216 |
Vendor Fix
fix
|
|
|
Windows 11 Version 22H2 for x64-based Systems <10.0.22621.5768
Windows 11 Version 22H2 for x64-based Systems
|
<10.0.22621.5768 |
Vendor Fix
fix
|
|
|
Windows 11 Version 22H2 for ARM64-based Systems <10.0.22621.5768
Windows 11 Version 22H2 for ARM64-based Systems
|
<10.0.22621.5768 |
Vendor Fix
fix
|
|
|
Windows 10 Version 21H2 for x64-based Systems <10.0.19044.6216
Windows 10 Version 21H2 for x64-based Systems
|
<10.0.19044.6216 |
Vendor Fix
fix
|
|
|
Windows Server 2022 (Server Core installation) <10.0.20348.4052
Windows Server 2022 (Server Core installation)
|
<10.0.20348.4052 |
Vendor Fix
fix
Vendor Fix
fix
|
|
|
Windows Server 2022 <10.0.20348.4052
Windows Server 2022
|
<10.0.20348.4052 |
Vendor Fix
fix
Vendor Fix
fix
|
|
|
Windows Server 2019 (Server Core installation) <10.0.17763.7678
Windows Server 2019 (Server Core installation)
|
<10.0.17763.7678 |
Vendor Fix
fix
|
|
|
Windows Server 2019 <10.0.17763.7678
Windows Server 2019
|
<10.0.17763.7678 |
Vendor Fix
fix
|
|
|
Windows 10 Version 1809 for x64-based Systems <10.0.17763.7678
Windows 10 Version 1809 for x64-based Systems
|
<10.0.17763.7678 |
Vendor Fix
fix
|
|
|
Windows Server 2016 (Server Core installation) <10.0.14393.8330
Windows Server 2016 (Server Core installation)
|
<10.0.14393.8330 |
Vendor Fix
fix
|
|
|
Windows 10 Version 1607 for x64-based Systems <10.0.14393.8330
Windows 10 Version 1607 for x64-based Systems
|
<10.0.14393.8330 |
Vendor Fix
fix
|
|
|
Windows Server 2016 <10.0.14393.8330
Windows Server 2016
|
<10.0.14393.8330 |
Vendor Fix
fix
|
{
"document": {
"acknowledgments": [
{
"names": [
"\u003ca href=\"https://twitter.com/rthhh17\"\u003eHongZhenhao\u003c/a\u003e with \u003ca href=\"https://twitter.com/tiangonglab\"\u003eTianGong Team of Legendsec at Qi\u0026#39;anxin Group\u003c/a\u003e"
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"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"
},
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"text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
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"vulnerabilities": [
{
"cve": "CVE-2025-49751",
"cwe": {
"id": "CWE-820",
"name": "Missing Synchronization"
},
"notes": [
{
"category": "general",
"text": "Microsoft",
"title": "Assigning CNA"
},
{
"category": "faq",
"text": "In this case, a successful attack could be performed from a low privilege Hyper-V guest. The attacker could traverse the guest\u0027s security boundary to cause denial of service on the Hyper-V host environment.",
"title": "According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?"
},
{
"category": "faq",
"text": "Where the attack vector metric is Adjacent (A), this represents virtual machines connected via a Hyper-V Network Virtualization (HNV) logical network. This configuration forms an isolation boundary where the virtual machines within the virtual network can only communicate with each other. In this attack vector, the vulnerable component is bound to the network stack, but the attack is limited to systems configured to use the HNV network.",
"title": "According to the CVSS metric, the Hyper-V attack vector is adjacent (AV:A). What does that mean for this vulnerability?"
}
],
"product_status": {
"fixed": [
"10816",
"10853",
"10855",
"11569",
"11571",
"11572",
"11923",
"11924",
"11931",
"12085",
"12086",
"12097",
"12242",
"12243",
"12244",
"12389",
"12390",
"12436",
"12437"
],
"known_affected": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
"13",
"14",
"15",
"16",
"17",
"18",
"19"
]
},
"references": [
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"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49751"
},
{
"category": "self",
"summary": "CVE-2025-49751 Windows Hyper-V Denial of Service Vulnerability - CSAF",
"url": "https://msrc.microsoft.com/csaf/advisories/2025/msrc_cve-2025-49751.json"
}
],
"remediations": [
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.17763.7678:Security Update:https://support.microsoft.com/help/5063877",
"product_ids": [
"16",
"15",
"14"
],
"url": "https://support.microsoft.com/help/5063877"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.20348.4052:Security Update:https://support.microsoft.com/help/5063880",
"product_ids": [
"13",
"12"
],
"url": "https://support.microsoft.com/help/5063880"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.20348.3989:SecurityHotpatchUpdate:https://support.microsoft.com/help/5063812",
"product_ids": [
"13",
"12"
],
"url": "https://support.microsoft.com/help/5063812"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.19044.6216:Security Update:https://support.microsoft.com/help/5063709",
"product_ids": [
"11"
],
"url": "https://support.microsoft.com/help/5063709"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.22621.5768:Security Update:https://support.microsoft.com/help/5063875",
"product_ids": [
"10",
"9"
],
"url": "https://support.microsoft.com/help/5063875"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.19045.6216:Security Update:https://support.microsoft.com/help/5063709",
"product_ids": [
"8"
],
"url": "https://support.microsoft.com/help/5063709"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.26100.4946:Security Update:https://support.microsoft.com/help/5063878",
"product_ids": [
"1",
"4",
"3",
"2"
],
"url": "https://support.microsoft.com/help/5063878"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.26100.4851:SecurityHotpatchUpdate:https://support.microsoft.com/help/5064010",
"product_ids": [
"1",
"4",
"3",
"2"
],
"url": "https://support.microsoft.com/help/5064010"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.22631.5768:Security Update:https://support.microsoft.com/help/5063875",
"product_ids": [
"7",
"6"
],
"url": "https://support.microsoft.com/help/5063875"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.25398.1791:Security Update:https://support.microsoft.com/help/5063899",
"product_ids": [
"5"
],
"url": "https://support.microsoft.com/help/5063899"
},
{
"category": "vendor_fix",
"date": "2025-08-12T07:00:00.000Z",
"details": "10.0.14393.8330:Security Update:https://support.microsoft.com/help/5063871",
"product_ids": [
"18",
"19",
"17"
],
"url": "https://support.microsoft.com/help/5063871"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"environmentalsScore": 0.0,
"exploitCodeMaturity": "UNPROVEN",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "CHANGED",
"temporalScore": 5.9,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"products": [
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"10",
"11",
"12",
"13",
"14",
"15",
"16",
"17",
"18",
"19"
]
}
],
"threats": [
{
"category": "impact",
"details": "Denial of Service"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
}
],
"title": "Windows Hyper-V Denial of Service Vulnerability"
}
]
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.