{"id":"CVE-2026-61368","title":"Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.","summary":"Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.","severity":"medium","cvss":5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-122"],"vendor":"microsoft","product":"windows_10_1607","affected":["windows_10_1607 < 10.0.14393.9418","windows_10_1809 < 10.0.17763.9115","windows_10_21h2 < 10.0.19044.7663","windows_10_22h2 < 10.0.19045.7663","windows_11_23h2 < 10.0.22631.7517","windows_11_24h2 < 10.0.26100.9106","windows_11_25h2 < 10.0.26200.9106","windows_11_26h1 < 10.0.28000.2704","windows_server_2016 < 10.0.14393.9418","windows_server_2019 < 10.0.17763.9115","windows_server_2022 < 10.0.20348.5440","windows_server_2025 < 10.0.26100.33222"],"patched":["windows_10_1607 10.0.14393.9418","windows_10_1809 10.0.17763.9115","windows_10_21h2 10.0.19044.7663","windows_10_22h2 10.0.19045.7663","windows_11_23h2 10.0.22631.7517","windows_11_24h2 10.0.26100.9106","windows_11_25h2 10.0.26200.9106","windows_11_26h1 10.0.28000.2704","windows_server_2016 10.0.14393.9418","windows_server_2019 10.0.17763.9115","windows_server_2022 10.0.20348.5440","windows_server_2025 10.0.26100.33222"],"published":"2026-08-11","updated":"2026-08-16","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61368","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61368","label":"secure@microsoft.com"}],"tags":["nvd","cve.org"],"epss":0.00372,"epssPercentile":0.31014,"ingestedAt":"2026-08-16T19:41:33.990Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-12T15:18:22.542186Z"},"slug":"CVE-2026-61368","body":"## Overview\n\nHeap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.\n\n## Affected\n\n- `windows_10_1607 < 10.0.14393.9418`\n- `windows_10_1809 < 10.0.17763.9115`\n- `windows_10_21h2 < 10.0.19044.7663`\n- `windows_10_22h2 < 10.0.19045.7663`\n- `windows_11_23h2 < 10.0.22631.7517`\n- `windows_11_24h2 < 10.0.26100.9106`\n- `windows_11_25h2 < 10.0.26200.9106`\n- `windows_11_26h1 < 10.0.28000.2704`\n- `windows_server_2016 < 10.0.14393.9418`\n- `windows_server_2019 < 10.0.17763.9115`\n- `windows_server_2022 < 10.0.20348.5440`\n- `windows_server_2025 < 10.0.26100.33222`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `windows_10_1607 10.0.14393.9418`\n- `windows_10_1809 10.0.17763.9115`\n- `windows_10_21h2 10.0.19044.7663`\n- `windows_10_22h2 10.0.19045.7663`\n- `windows_11_23h2 10.0.22631.7517`\n- `windows_11_24h2 10.0.26100.9106`\n- `windows_11_25h2 10.0.26200.9106`\n- `windows_11_26h1 10.0.28000.2704`\n- `windows_server_2016 10.0.14393.9418`\n- `windows_server_2019 10.0.17763.9115`\n- `windows_server_2022 10.0.20348.5440`\n- `windows_server_2025 10.0.26100.33222`","depth":"sunlit","depthScore":28,"depthScoreParts":{"impact":27.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}