{"id":"CVE-2026-77544","aliases":["EUVD-2026-84753","GHSA-cgjh-gg68-hw7w"],"status":"published","title":"A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability...","description":"A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.","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":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00522,"percentile":0.44613,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-09-22T18:34:39Z","modified":"2026-09-22T21:31:34Z","products":[{"vendor":"@clerk","product":"express"},{"vendor":"ubiquiti inc","product":"cloud gateways"},{"vendor":"ubiquiti inc","product":"dream machines"},{"vendor":"ubiquiti inc","product":"dream routers"},{"vendor":"ubiquiti inc","product":"dream wall"},{"vendor":"ubiquiti inc","product":"enterprise firewalls"},{"vendor":"ubiquiti inc","product":"express"},{"vendor":"ubiquiti inc","product":"express 7"},{"vendor":"ubiquiti inc","product":"unifi gateways"}],"references":[{"url":"https://community.ui.com/releases/Security-Advisory-Bulletin-069-069/07e367a7-edec-4d85-a058-f97e5ce9ac9c"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77544"},{"url":"https://github.com/advisories/GHSA-cgjh-gg68-hw7w"}],"sources":{"cve":[{"id":"CVE-2026-77544","description":"A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.","status":"published","published":"2026-09-22T18:34:39.993Z","modified":"2026-09-22T19:32:21.278Z","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":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:20:16.072351Z"}],"euvd":[{"id":"EUVD-2026-84753","description":"A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.","status":"published","published":"2026-09-22T18:34:39Z","modified":"2026-09-22T19:32:21Z","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"}],"updated_at":"2026-11-02T17:28:01.71506Z"}],"ghsa":[{"id":"GHSA-cgjh-gg68-hw7w","title":"A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability...","description":"A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.","status":"published","published":"2026-09-22T21:31:26Z","modified":"2026-09-22T21:31:34Z","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-787"],"updated_at":"2026-11-02T15:12:18.539197Z"}],"nvd":[{"id":"CVE-2026-77544","description":"A malicious actor with access to the network could exploit an Out-of-bounds Write vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.","status":"published","published":"2026-09-22T19:16:51.6Z","modified":"2026-09-22T20:17:08.35Z","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":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:50.703874Z"}]}}