{"id":"CVE-2026-62897","title":".NET Framework Remote Code Execution Vulnerability","summary":"Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-190"],"vendor":"Microsoft","product":".NET 10.0","affected":[".net_10.0 >= 10.0.0 < 10.0.11",".net_8.0 >= 8.0.0 < 8.0.30",".net_9.0 >= 9.0.0 < 9.0.19",".net_framework_3.5 >= 3.5.0 < 2.0.50727.9183 & 3.0.30729.9169",".net_framework_3.5_and_4.7.2 >= 4.7.0 < 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0",".net_framework_3.5_and_4.8 >= 4.8.0 < 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0",".net_framework_4.8.1 >= 4.8.0.0 < 4.8.9344.0","visual_studio_2022_version_17.14 >= 17.14.0 < 17.14.38","visual_studio_2026_version_18.8 >= 18.0 < 18.8.3"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-12T03:55:40.593167Z"},"published":"2026-08-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T16:24:07.487Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-62897","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62897","label":".NET Framework Remote Code Execution Vulnerability"},{"url":"https://github.com/dotnet/wpf/security/advisories/GHSA-fx4q-gjrx-2jw6"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-62897"},{"url":"https://github.com/dotnet/announcements/issues/434"},{"url":"https://github.com/advisories/GHSA-fx4q-gjrx-2jw6"}],"tags":["cve.org","ghsa","nuget"],"epss":0.00336,"epssPercentile":0.27,"aliases":["GHSA-fx4q-gjrx-2jw6"],"ecosystem":"nuget","patched":["Microsoft.WindowsDesktop.App.Runtime.win-arm64 10.0.11","Microsoft.WindowsDesktop.App.Runtime.win-x64 10.0.11","Microsoft.WindowsDesktop.App.Runtime.win-x86 10.0.11","Microsoft.WindowsDesktop.App.Runtime.win-arm64 9.0.19","Microsoft.WindowsDesktop.App.Runtime.win-x64 9.0.19","Microsoft.WindowsDesktop.App.Runtime.win-x86 9.0.19","Microsoft.WindowsDesktop.App.Runtime.win-arm64 8.0.30","Microsoft.WindowsDesktop.App.Runtime.win-x64 8.0.30","Microsoft.WindowsDesktop.App.Runtime.win-x86 8.0.30"],"ingestedAt":"2026-08-11T19:48:28.973Z","slug":"CVE-2026-62897","body":"## Overview\n\nInteger overflow or wraparound in .NET Framework allows an unauthorized attacker to execute code locally.\n\n## Affected\n\n- `.net_10.0 >= 10.0.0 < 10.0.11`\n- `.net_8.0 >= 8.0.0 < 8.0.30`\n- `.net_9.0 >= 9.0.0 < 9.0.19`\n- `.net_framework_3.5 >= 3.5.0 < 2.0.50727.9183 & 3.0.30729.9169`\n- `.net_framework_3.5_and_4.7.2 >= 4.7.0 < 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0`\n- `.net_framework_3.5_and_4.8 >= 4.8.0 < 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0`\n- `.net_framework_4.8.1 >= 4.8.0.0 < 4.8.9344.0`\n- `visual_studio_2022_version_17.14 >= 17.14.0 < 17.14.38`\n- `visual_studio_2026_version_18.8 >= 18.0 < 18.8.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-62897)\n\nAffected packages:\n\n- `Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 10.0.0, <= 10.0.10`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 10.0.0, <= 10.0.10`\n- `Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 9.0.0, <= 9.0.18`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 9.0.0, <= 9.0.18`\n- `Microsoft.WindowsDesktop.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x64 >= 8.0.0, <= 8.0.29`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x86 >= 8.0.0, <= 8.0.29`\n\nPatched in:\n\n- `Microsoft.WindowsDesktop.App.Runtime.win-arm64 10.0.11`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x64 10.0.11`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x86 10.0.11`\n- `Microsoft.WindowsDesktop.App.Runtime.win-arm64 9.0.19`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x64 9.0.19`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x86 9.0.19`\n- `Microsoft.WindowsDesktop.App.Runtime.win-arm64 8.0.30`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x64 8.0.30`\n- `Microsoft.WindowsDesktop.App.Runtime.win-x86 8.0.30`\n\nSource: https://github.com/advisories/GHSA-fx4q-gjrx-2jw6","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}