CVE-2025-62567 (GCVE-0-2025-62567)
Vulnerability from cvelistv5 – Published: 2025-12-09 17:56 – Updated: 2025-12-10 00:26
VLAI?
Summary
Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.
Severity ?
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.8146
(custom)
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{
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{
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],
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}
]
},
{
"platforms": [
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],
"product": "Windows Server 2019",
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{
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]
},
{
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],
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]
},
{
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],
"product": "Windows Server 2022",
"vendor": "Microsoft",
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{
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"version": "10.0.20348.0",
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]
},
{
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],
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{
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},
{
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{
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"status": "affected",
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},
{
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{
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"status": "affected",
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},
{
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"product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
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}
]
},
{
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],
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},
{
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]
},
{
"platforms": [
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],
"product": "Windows 10 Version 1607",
"vendor": "Microsoft",
"versions": [
{
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"status": "affected",
"version": "10.0.14393.0",
"versionType": "custom"
}
]
},
{
"platforms": [
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],
"product": "Windows Server 2016",
"vendor": "Microsoft",
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{
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"status": "affected",
"version": "10.0.14393.0",
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}
]
},
{
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],
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"status": "affected",
"version": "10.0.14393.0",
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}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Windows Server 2012 R2",
"vendor": "Microsoft",
"versions": [
{
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"status": "affected",
"version": "6.3.9600.0",
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}
]
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{
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],
"cpeApplicability": [
{
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"negate": false,
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],
"datePublic": "2025-12-09T08:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network."
}
],
"metrics": [
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"cvssV3_1": {
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
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"problemTypes": [
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"description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-10T00:26:54.640Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Windows Hyper-V Denial of Service Vulnerability",
"tags": [
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],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62567"
}
],
"title": "Windows Hyper-V Denial of Service Vulnerability"
}
},
"cveMetadata": {
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"assignerShortName": "microsoft",
"cveId": "CVE-2025-62567",
"datePublished": "2025-12-09T17:56:03.534Z",
"dateReserved": "2025-10-15T17:11:21.221Z",
"dateUpdated": "2025-12-10T00:26:54.640Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-62567\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2025-12-09T18:16:02.827\",\"lastModified\":\"2025-12-09T18:36:29.050\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Integer underflow (wrap or wraparound) in Windows Hyper-V allows an authorized attacker to deny service over a network.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-191\"}]}],\"references\":[{\"url\":\"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62567\",\"source\":\"secure@microsoft.com\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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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