{"id":"CVE-2026-69522","aliases":[],"title":".NET and Visual Studio Remote Code Execution Vulnerability","titleSource":"microsoft","descriptionSource":"microsoft","products":[{"vendor":"Microsoft","name":".NET 10.0","platforms":[],"versions":[{"version":"10.0.0","status":"affected","lessThan":"10.0.12","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":".NET 11.0","platforms":[],"versions":[{"version":"11.0.0","status":"affected","lessThan":"11.0 RC1","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":".NET 8.0","platforms":[],"versions":[{"version":"8.0.0","status":"affected","lessThan":"8.0.31","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":".NET 9.0","platforms":[],"versions":[{"version":"9.0.0","status":"affected","lessThan":"9.0.20","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2","platforms":["Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows Server 2016"],"versions":[{"version":"3.0.0.0","status":"affected","lessThan":"2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft .NET Framework 3.5 AND 4.7.2","platforms":["Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems","Windows Server 2019"],"versions":[{"version":"4.7.0","status":"affected","lessThan":"2.0.50727.9070 & 3.0.30729.9068 & 4.7.4145.0","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft .NET Framework 3.5 AND 4.8","platforms":["Windows 10 Version 1809 for 32-bit Systems","Windows 10 Version 1809 for ARM64-based Systems","Windows 10 Version 1809 for x64-based Systems","Windows 10 Version 21H2 for 32-bit Systems","Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 for x64-based Systems","Windows 10 Version 22H2 for 32-bit Systems","Windows 10 Version 22H2 for ARM64-based Systems","Windows 10 Version 22H2 for x64-based Systems","Windows Server 2019","Windows Server 2022"],"versions":[{"version":"4.8.0","status":"affected","lessThan":"2.0.50727.9070 & 3.0.30729.9068 & 4.8.4806.0","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft .NET Framework 3.5 AND 4.8.1","platforms":["Windows 10 Version 21H2 for 32-bit Systems","Windows 10 Version 21H2 for ARM64-based Systems","Windows 10 Version 21H2 for x64-based Systems","Windows 10 Version 22H2 for 32-bit Systems","Windows 10 Version 22H2 for ARM64-based Systems","Windows 10 Version 22H2 for x64-based Systems","Windows 11 Version 23H2 for ARM64-based Systems","Windows 11 Version 23H2 for x64-based Systems","Windows 11 Version 24H2 for ARM64-based Systems","Windows 11 Version 24H2 for x64-based Systems","Windows 11 Version 25H2 for ARM64-based Systems","Windows 11 Version 25H2 for x64-based Systems","Windows Server 2022","Windows Server 2025"],"versions":[{"version":"4.8.1","status":"affected","lessThan":"2.0.50727.9183 & 3.0.30729.9169 & 4.8.9347.0","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2","platforms":["Windows Server 2012","Windows Server 2012 R2"],"versions":[{"version":"4.7.0","status":"affected","lessThan":"4.7.4145.0","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft .NET Framework 4.8","platforms":["Windows 10 Version 1607 for 32-bit Systems","Windows 10 Version 1607 for x64-based Systems","Windows Server 2012","Windows Server 2012 R2","Windows Server 2016"],"versions":[{"version":"4.8.0","status":"affected","lessThan":"4.8.4806.0","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft .NET Framework 4.8.1","platforms":["Windows 11 Version 26H1 for ARM64-based Systems","Windows 11 version 26H1 for x64-based Systems"],"versions":[{"version":"4.8.0.0","status":"affected","lessThan":"4.8.9347.0","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft Visual Studio 2022 version 17.14","platforms":[],"versions":[{"version":"17.14.0","status":"affected","lessThan":"17.14.40","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"},{"vendor":"Microsoft","name":"Microsoft Visual Studio 2026 version 18.9","platforms":[],"versions":[{"version":"18.9.0","status":"affected","lessThan":"18.9.3","versionType":"custom"}],"source":"microsoft","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"}],"remediation":[],"description":"Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.","severity":"high","score":8.8,"published":"2026-09-08T17:10:32.415Z","modified":"2026-10-26T23:24:50.233Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69522"],"sources":[{"name":"CVE","id":"CVE-2026-69522","modified":"2026-10-26T23:24:50.233Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-69522"}],"assessments":[{"source":"microsoft","vector":"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","score":8.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T16:50:32.247Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}