Exploitation evidence
Not listed in the latest downloaded CISA KEV catalog. This does not establish an absence of exploitation.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
Microsoft / .NET 10.0 installed on Windows
Default status: Not specified
- affected: 10.0.0 to < 10.0.15 (custom)
Microsoft / .NET 11.0 installed on Windows
Default status: Not specified
- affected: 11.0.0-preview.1 to < 11.0.0 (custom)
Microsoft / .NET 8.0 installed on Windows
Default status: Not specified
- affected: 8.0.0 to < 8.0.34 (custom)
Microsoft / .NET 9.0 installed on Windows
Default status: Not specified
- affected: 9.0.0 to < 9.0.23 (custom)
Microsoft / Microsoft Visual Studio 2026 version 18.11
Default status: Not specified
- affected: 18.11.0 to < 18.11.4 (custom)
Microsoft / Microsoft Visual Studio 2026 version 18.12
Default status: Not specified
- affected: 18.12.0 to < 18.12.0 (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
Monitored source mentions
Shared CVE identifiers link source mentions; they do not establish that the reports describe the same incident.
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": 0.0087,
"percentile": 0.59273
}12 Nov 2026, 18:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-114158",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-11-10T20:02:27.266854Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-11-10T20:09:27.767Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": ".NET 10.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.15",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 11.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "11.0.0",
"status": "affected",
"version": "11.0.0-preview.1",
"versionType": "custom"
}
]
},
{
"product": ".NET 8.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.34",
"status": "affected",
"version": "8.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 9.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.23",
"status": "affected",
"version": "9.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2026 version 18.11",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "18.11.4",
"status": "affected",
"version": "18.11.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2026 version 18.12",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "18.12.0",
"status": "affected",
"version": "18.12.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:.net_8.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.34",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_9.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.23",
"versionStartIncluding": "9.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_10.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.15",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_11.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "11.0.0",
"versionStartIncluding": "11.0.0-preview.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.11:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.11.4",
"versionStartIncluding": "18.11.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.12:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.12.0",
"versionStartIncluding": "18.12.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-11-10T16:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122: Heap-based Buffer Overflow",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-12T15:44:25.901Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Visual Studio Remote Code Execution Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114158"
}
],
"title": "Visual Studio Remote Code Execution Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-114158",
"datePublished": "2026-11-10T18:19:17.944Z",
"dateReserved": "2026-10-20T21:56:39.317Z",
"dateUpdated": "2026-11-12T15:44:25.901Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}11 Nov 2026, 12:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-114158",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-11-10T20:02:27.266854Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-11-10T20:09:27.767Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": ".NET 10.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.15",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 11.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "11.0.0",
"status": "affected",
"version": "11.0.0-preview.1",
"versionType": "custom"
}
]
},
{
"product": ".NET 8.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.34",
"status": "affected",
"version": "8.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 9.0 installed on Windows",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.23",
"status": "affected",
"version": "9.0.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2026 version 18.11",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "18.11.4",
"status": "affected",
"version": "18.11.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2026 version 18.12",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "18.12.0",
"status": "affected",
"version": "18.12.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:.net_8.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.34",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_9.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.23",
"versionStartIncluding": "9.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_10.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.15",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net_11.0_installed_on_windows:*:*:*:*:*:*:*:*",
"versionEndExcluding": "11.0.0",
"versionStartIncluding": "11.0.0-preview.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.11:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.11.4",
"versionStartIncluding": "18.11.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.12:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.12.0",
"versionStartIncluding": "18.12.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-11-10T16:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "CWE-122: Heap-based Buffer Overflow",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-10T23:50:51.503Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Visual Studio Remote Code Execution Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114158"
}
],
"title": "Visual Studio Remote Code Execution Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-114158",
"datePublished": "2026-11-10T18:19:17.944Z",
"dateReserved": "2026-10-20T21:56:39.317Z",
"dateUpdated": "2026-11-10T23:50:51.503Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}