Exploitation evidence
Known exploited · CISA KEV listed
Added 2023-08-09. Ransomware campaign use: Unknown.
CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: 2023-08-30. This is the catalog’s deadline, not an assessment of your organization’s exposure.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Microsoft / .NET 6.0
Default status: Not specified
- affected: 6.0.0 to < 6.0.21 (custom)
Microsoft / .NET 7.0
Default status: Not specified
- affected: 7.0.0 to < 7.0.10 (custom)
Microsoft / ASP.NET Core 2.1
Default status: Not specified
- affected: 2.0 to < 2.1.40 (custom)
Microsoft / Microsoft Visual Studio 2022 version 17.2
Default status: Not specified
- affected: 17.2.0 to < 17.2.18 (custom)
Microsoft / Microsoft Visual Studio 2022 version 17.4
Default status: Not specified
- affected: 17.4.0 to < 17.4.10 (custom)
Microsoft / Microsoft Visual Studio 2022 version 17.6
Default status: Not specified
- affected: 17.6.0 to < 17.6.6 (custom)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CL2L4WE5QRT7WEXANYXSKSU43APC5N2V/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWVZFKTLNMNKPZ755EMRYIA6GHFOWGKY/
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.14127,
"percentile": 0.96624
}10 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.14127,
"percentile": 0.96603
}09 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-09",
"epss": 0.14127,
"percentile": 0.96599
}08 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-08",
"epss": 0.14127,
"percentile": 0.96597
}07 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-07",
"epss": 0.14127,
"percentile": 0.96595
}06 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-06",
"epss": 0.14127,
"percentile": 0.9659
}06 Nov 2026, 06:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-05",
"epss": 0.14127,
"percentile": 0.96588
}04 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-04",
"epss": 0.14127,
"percentile": 0.96585
}04 Nov 2026, 18:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-38180",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-07-24T20:42:20.831219Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2023-08-09",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400 Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T23:05:41.434Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180"
}
],
"timeline": [
{
"lang": "en",
"time": "2023-08-09T00:00:00.000Z",
"value": "CVE-2023-38180 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-02T17:30:14.113Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": ".NET and Visual Studio Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CL2L4WE5QRT7WEXANYXSKSU43APC5N2V/"
},
{
"tags": [
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWVZFKTLNMNKPZ755EMRYIA6GHFOWGKY/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": ".NET 6.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "6.0.21",
"status": "affected",
"version": "6.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 7.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "7.0.10",
"status": "affected",
"version": "7.0.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 2.1",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "2.1.40",
"status": "affected",
"version": "2.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.2",
"vendor": "Microsoft",
"versions": [
{
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"status": "affected",
"version": "17.2.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.4",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.4.10",
"status": "affected",
"version": "17.4.0",
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}
]
},
{
"product": "Microsoft Visual Studio 2022 version 17.6",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "17.6.6",
"status": "affected",
"version": "17.6.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2.1.40",
"versionStartIncluding": "2.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0.21",
"versionStartIncluding": "6.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.0.10",
"versionStartIncluding": "7.0.0",
"vulnerable": true
},
{
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"versionEndExcluding": "17.2.18",
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"vulnerable": true
},
{
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"versionEndExcluding": "17.4.10",
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"vulnerable": true
},
{
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"versionEndExcluding": "17.6.6",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2023-08-08T07:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": ".NET and Visual Studio Denial of Service Vulnerability"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Denial of Service",
"lang": "en-US",
"type": "Impact"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-10T15:12:01.076Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": ".NET and Visual Studio Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180"
}
],
"title": ".NET and Visual Studio Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2023-38180",
"datePublished": "2023-08-08T18:52:31.790Z",
"dateReserved": "2023-07-12T23:41:45.867Z",
"dateUpdated": "2026-08-10T15:12:01.076Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}03 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-03",
"epss": 0.14127,
"percentile": 0.96579
}03 Nov 2026, 02:22 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-02",
"epss": 0.14127,
"percentile": 0.96574
}03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed
Stored KEV snapshot at this observation.
{
"cveID": "CVE-2023-38180",
"cwes": [],
"dateAdded": "2023-08-09",
"dueDate": "2023-08-30",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-38180; https://nvd.nist.gov/vuln/detail/CVE-2023-38180",
"product": ".NET Core and Visual Studio",
"requiredAction": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.",
"shortDescription": "Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability"
}