{"id":"CVE-2020-7877","aliases":["EUVD-2020-28809","GHSA-4p59-rrxq-mw63"],"status":"published","title":"ZOOK solution(remote administration tool) buffer overflow vulnerability","description":"A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.","severity":{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00818,"percentile":0.57414,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2021-09-07T11:43:54Z","modified":"2026-06-17T03:25:35Z","products":[{"vendor":"mastersoft","product":"zook_agent"},{"vendor":"mastersoft","product":"zook_viewer"},{"vendor":"mastersoft","product":"zookagentsetup.exe"},{"vendor":"mastersoft","product":"zookviewer_setup.exe"}],"references":[{"url":"https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36216","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-7877"},{"url":"https://github.com/advisories/GHSA-4p59-rrxq-mw63"}],"sources":{"cve":[{"id":"CVE-2020-7877","title":"ZOOK solution(remote administration tool) buffer overflow vulnerability","description":"A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.","status":"published","published":"2021-09-07T11:43:54Z","modified":"2024-08-04T09:41:02.007Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:58.331892Z"}],"euvd":[{"id":"EUVD-2020-28809","description":"A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.","status":"published","published":"2021-09-07T11:43:54Z","modified":"2024-08-04T09:41:02Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:07:58.506831Z"}],"ghsa":[{"id":"GHSA-4p59-rrxq-mw63","title":"A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through...","description":"A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.","status":"published","published":"2022-05-24T19:13:15Z","modified":"2023-01-30T05:01:52Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:46:30.304291Z"}],"nvd":[{"id":"CVE-2020-7877","description":"A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.","status":"published","published":"2021-09-07T12:15:07.55Z","modified":"2026-06-17T03:25:35.51Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:06:45.704484Z"}]}}