{"cve":"CVE-2026-49798","enrichment":{"created":"2026-07-16T14:45:04.225061+00:00","updated":"2026-08-24T17:15:05.462669+00:00","vendors":[]},"epss":{"score":0.00364},"mitre":{"cpes":["cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*"],"created":"2026-07-14T17:05:58.466000+00:00","description":"Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.","metrics":{"cvssV2_0":{},"cvssV3_0":{},"cvssV3_1":{"score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C"},"cvssV4_0":{}},"mitre_repo_path":"cves/2026/49xxx/CVE-2026-49798.json","references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49798"],"title":"Windows Kernel Elevation of Privilege Vulnerability","updated":"2026-09-25T18:21:18.601000+00:00","vendors":["microsoft","microsoft$PRODUCT$windows_10_1607","microsoft$PRODUCT$windows_10_1809","microsoft$PRODUCT$windows_10_21H2","microsoft$PRODUCT$windows_10_22H2","microsoft$PRODUCT$windows_11_24H2","microsoft$PRODUCT$windows_11_25H2","microsoft$PRODUCT$windows_11_26H1","microsoft$PRODUCT$windows_server_2012","microsoft$PRODUCT$windows_server_2012_R2","microsoft$PRODUCT$windows_server_2016","microsoft$PRODUCT$windows_server_2019","microsoft$PRODUCT$windows_server_2022","microsoft$PRODUCT$windows_server_2025"],"weaknesses":["CWE-416"]},"nvd":{"cpes":["cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*"],"created":"2026-07-14T17:16:55.857000+00:00","description":"Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.","metrics":{"cvssV2_0":{},"cvssV3_0":{},"cvssV3_1":{"score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},"cvssV4_0":{}},"nvd_repo_path":"2026/CVE-2026-49798.json","references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49798"],"title":null,"updated":"2026-07-22T16:17:33.513000+00:00","vendors":["microsoft","microsoft$PRODUCT$windows_10_1607","microsoft$PRODUCT$windows_10_1809","microsoft$PRODUCT$windows_10_21h2","microsoft$PRODUCT$windows_10_22h2","microsoft$PRODUCT$windows_11_24h2","microsoft$PRODUCT$windows_11_25h2","microsoft$PRODUCT$windows_11_26h1","microsoft$PRODUCT$windows_server_2012","microsoft$PRODUCT$windows_server_2016","microsoft$PRODUCT$windows_server_2019","microsoft$PRODUCT$windows_server_2022","microsoft$PRODUCT$windows_server_2025"],"weaknesses":["CWE-416"]},"opencve":{"changes":[{"created":"2026-07-14T17:15:00+00:00","data":[{"details":{"new":"Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.","old":null},"type":"description"},{"details":{"new":"Windows Kernel Elevation of Privilege Vulnerability","old":null},"type":"title"},{"details":["microsoft","microsoft$PRODUCT$windows_10_1607","microsoft$PRODUCT$windows_10_1809","microsoft$PRODUCT$windows_10_21H2","microsoft$PRODUCT$windows_10_22H2","microsoft$PRODUCT$windows_11_24H2","microsoft$PRODUCT$windows_11_25H2","microsoft$PRODUCT$windows_11_26H1","microsoft$PRODUCT$windows_server_2012","microsoft$PRODUCT$windows_server_2012_R2","microsoft$PRODUCT$windows_server_2016","microsoft$PRODUCT$windows_server_2019","microsoft$PRODUCT$windows_server_2022","microsoft$PRODUCT$windows_server_2025"],"type":"first_time"},{"details":{"added":["CWE-416"],"removed":[]},"type":"weaknesses"},{"details":{"added":["cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*"],"removed":[]},"type":"cpes"},{"details":{"added":["microsoft","microsoft$PRODUCT$windows_10_1607","microsoft$PRODUCT$windows_10_1809","microsoft$PRODUCT$windows_10_21H2","microsoft$PRODUCT$windows_10_22H2","microsoft$PRODUCT$windows_11_24H2","microsoft$PRODUCT$windows_11_25H2","microsoft$PRODUCT$windows_11_26H1","microsoft$PRODUCT$windows_server_2012","microsoft$PRODUCT$windows_server_2012_R2","microsoft$PRODUCT$windows_server_2016","microsoft$PRODUCT$windows_server_2019","microsoft$PRODUCT$windows_server_2022","microsoft$PRODUCT$windows_server_2025"],"removed":[]},"type":"vendors"},{"details":{"added":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49798"],"removed":[]},"type":"references"},{"details":{"added":{"cvssV3_1":{"score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C"}},"removed":{},"updated":{}},"type":"metrics"}],"id":"1dff7740-3791-4b67-a77a-5fbc0be13c66"},{"created":"2026-07-15T11:30:00+00:00","data":[{"details":{"added":{"ssvc":{"options":{"Automatable":"no","Exploitation":"none","Technical Impact":"total"},"version":"2.0.3"}},"removed":{},"updated":{}},"type":"metrics"}],"id":"c85be4a7-ede0-4ab0-9113-6d9ed380b03b"}],"cpes":{"data":["cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*","cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*","cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*","cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*","cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*"],"providers":["mitre","nvd"]},"created":{"data":"2026-07-14T17:05:58.466000+00:00","provider":"mitre"},"description":{"data":"Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.","provider":"mitre"},"metrics":{"cvssV2_0":{"data":{},"provider":null},"cvssV3_0":{"data":{},"provider":null},"cvssV3_1":{"data":{"score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C"},"provider":"mitre"},"cvssV4_0":{"data":{},"provider":null},"epss":{"data":{"score":0.00364},"provider":"first"},"kev":{"data":{},"provider":null},"ssvc":{"data":{"options":{"Automatable":"no","Exploitation":"none","Technical Impact":"total"},"version":"2.0.3"},"provider":"vulnrichment"},"threat_severity":{"data":null,"provider":null}},"references":{"data":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49798"],"providers":["mitre","nvd"]},"title":{"data":"Windows Kernel Elevation of Privilege Vulnerability","provider":"mitre"},"updated":{"data":"2026-07-15T11:04:57.069000+00:00","provider":"mitre"},"vendors":{"data":["microsoft","microsoft$PRODUCT$windows_10_1607","microsoft$PRODUCT$windows_10_1809","microsoft$PRODUCT$windows_10_21H2","microsoft$PRODUCT$windows_10_21h2","microsoft$PRODUCT$windows_10_22H2","microsoft$PRODUCT$windows_10_22h2","microsoft$PRODUCT$windows_11_24H2","microsoft$PRODUCT$windows_11_24h2","microsoft$PRODUCT$windows_11_25H2","microsoft$PRODUCT$windows_11_25h2","microsoft$PRODUCT$windows_11_26H1","microsoft$PRODUCT$windows_11_26h1","microsoft$PRODUCT$windows_server_2012","microsoft$PRODUCT$windows_server_2012_R2","microsoft$PRODUCT$windows_server_2016","microsoft$PRODUCT$windows_server_2019","microsoft$PRODUCT$windows_server_2022","microsoft$PRODUCT$windows_server_2025"],"providers":["mitre","nvd"]},"weaknesses":{"data":["CWE-416"],"providers":["mitre","nvd"]}},"vulnrichment":{"cpes":[],"created":"2026-07-14T17:05:58.466000+00:00","description":"Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.","metrics":{"cvssV2_0":{},"cvssV3_0":{},"cvssV3_1":{},"cvssV4_0":{},"kev":{},"ssvc":{"options":{"Automatable":"no","Exploitation":"none","Technical Impact":"total"},"version":"2.0.3"}},"references":[],"title":"Windows Kernel Elevation of Privilege Vulnerability","updated":"2026-07-15T11:04:51.977000+00:00","vendors":[],"vulnrichment_repo_path":"2026/49xxx/CVE-2026-49798.json","weaknesses":[]}}