High
Security advisory
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-62897
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:02 UTC · Revision 1
Source evidence
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.
osv:CVE-2026-62897
Complete source record
{
"id": "5c871ae91270093671cda755d80216a6d33e4dbc24725e9fde61bb2fb99afc4c",
"url": "https://osv.dev/vulnerability/CVE-2026-62897",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-62897",
"summary": "Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.",
"evidence": "osv:CVE-2026-62897",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-62897",
"aliases": [
"BIT-dotnet-2026-62897",
"BIT-dotnet-sdk-2026-62897",
"CVE-2026-62897",
"GHSA-fx4q-gjrx-2jw6"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/dotnet/core",
"type": "GIT",
"events": [
{
"introduced": "d78b3180414d35d6c7d136db753474e2ae2b33df"
},
{
"fixed": "808c6af9a9cb4e3d6680f36180e55cb2aeb0ce26"
},
{
"introduced": "e18becd6171b8eb0eb4ec7ea8a0280cacfcee36b"
},
{
"fixed": "808c6af9a9cb4e3d6680f36180e55cb2aeb0ce26"
},
{
"introduced": "0e06b3b745aaf3f2f96e5f163773d20f8c7f7f50"
},
{
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}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.30"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0"
},
{
"fixed": "9.0.19"
}
],
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{
"cpe": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
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{
"fixed": "10.0.11"
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],
"versions": [
"v9.0.18",
"v8.0.29",
"v11.0.0-preview.6",
"v10.0.10",
"v9.0.17",
"v11.0.0-preview.5",
"v10.0.9",
"v8.0.28",
"v11.0.0-preview.4",
"v9.0.16",
"v8.0.27",
"v10.0.8",
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"v10.0.6",
"v9.0.15",
"v8.0.26",
"v10.0.5",
"v9.0.14",
"v8.0.25",
"v11.0.0-preview.2",
"v10.0.4",
"v11.0.0-preview.1",
"v9.0.13",
"v8.0.24",
"v10.0.3",
"v9.0.12",
"v8.0.23",
"v10.0.2",
"v10.0.1",
"v9.0.11",
"v8.0.22",
"v10.0.0"
],
"database_specific": {
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}
}
],
"modified": "2026-10-30T02:30:53.674436361Z",
"provider": "osv",
"references": [
"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62897"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*"
],
"vendor_product": "microsoft:visual_studio_2022",
"extracted_events": [
{
"range": [
{
"introduced": "17.14.0"
},
{
"fixed": "17.14.38"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
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],
"vendor_product": "microsoft:visual_studio_2026",
"extracted_events": [
{
"range": [
{
"introduced": "18.8.0"
},
{
"fixed": "18.8.3"
}
],
"source": "CPE_RANGE"
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]
},
{
"cpes": [
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"cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*",
"cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*",
"cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*"
],
"vendor_product": "microsoft:.net_framework",
"extracted_events": [
{
"range": [
{
"introduced": "3.5-NA"
},
{
"last_affected": "3.5-NA"
},
{
"introduced": "3.5-NA"
},
{
"last_affected": "3.5-NA"
},
{
"introduced": "4.7.2"
},
{
"last_affected": "4.7.2"
},
{
"introduced": "4.8.1"
},
{
"last_affected": "4.8.1"
},
{
"introduced": "3.5-NA"
},
{
"last_affected": "3.5-NA"
},
{
"introduced": "4.8"
},
{
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}
],
"source": "CPE_STRING"
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]
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]
}
},
"related_cves": [
{
"value": "CVE-2026-62897",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 436584,
"published_at": "2026-08-11T17:18:43.85+00:00"
}