{"id":"CVE-2021-28847","aliases":["EUVD-2021-15501","GHSA-whgp-9qjc-434f"],"status":"published","title":"MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via...","description":"MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01427,"percentile":0.73191,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2021-06-03T10:58:16Z","modified":"2026-06-17T03:46:59Z","products":[{"vendor":"mobatek","product":"mobaxterm"}],"references":[{"url":"https://mobaxterm.mobatek.net/preview.html","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://mobaxterm.mobatek.net/download-home-edition.html","tags":["x_refsource_CONFIRM","x_transferred","Product","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28847"},{"url":"https://github.com/advisories/GHSA-whgp-9qjc-434f"}],"sources":{"cve":[{"id":"CVE-2021-28847","description":"MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.","status":"published","published":"2021-06-03T10:58:16Z","modified":"2024-08-03T21:55:11.897Z","updated_at":"2026-11-02T14:33:08.811269Z"}],"euvd":[{"id":"EUVD-2021-15501","description":"MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.","status":"published","published":"2021-06-03T10:58:16Z","modified":"2024-08-03T21:55:11Z","updated_at":"2026-11-03T03:24:46.117926Z"}],"ghsa":[{"id":"GHSA-whgp-9qjc-434f","title":"MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via...","description":"MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.","status":"published","published":"2022-05-24T19:03:59Z","modified":"2023-01-27T05:03:03Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:42:09.625504Z"}],"nvd":[{"id":"CVE-2021-28847","description":"MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.","status":"published","published":"2021-06-03T11:15:08.627Z","modified":"2026-06-17T03:46:59.157Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:53.987491Z"}]}}