{"id":"CVE-1999-1301","aliases":["EUVD-1999-1282","GHSA-57xw-6c7g-xh67"],"status":"published","title":"A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary...","description":"A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary programs on the client, as implemented in rz in the rzsz module of FreeBSD before 2.1.5, and possibly other programs.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01316,"percentile":0.70969,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"1996-07-16T04:00:00Z","modified":"2026-06-16T21:50:08Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/old/FreeBSD-SA-96:17.rzsz.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.iss.net/security_center/static/7540.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://ciac.llnl.gov/ciac/bulletins/g-31.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-1301"},{"url":"https://github.com/advisories/GHSA-57xw-6c7g-xh67"}],"sources":{"cve":[{"id":"CVE-1999-1301","description":"A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary programs on the client, as implemented in rz in the rzsz module of FreeBSD before 2.1.5, and possibly other programs.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:11:01.754Z","updated_at":"2026-11-02T14:33:53.295018Z"}],"euvd":[{"id":"EUVD-1999-1282","description":"A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary programs on the client, as implemented in rz in the rzsz module of FreeBSD before 2.1.5, and possibly other programs.","status":"published","published":"2002-03-09T05:00:00Z","modified":"2024-08-01T17:11:01Z","updated_at":"2026-11-03T03:50:43.346493Z"}],"ghsa":[{"id":"GHSA-57xw-6c7g-xh67","title":"A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary...","description":"A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary programs on the client, as implemented in rz in the rzsz module of FreeBSD before 2.1.5, and possibly other programs.","status":"published","published":"2022-05-03T03:06:06Z","modified":"2023-02-01T05:00:57Z","updated_at":"2026-11-02T14:49:38.236988Z"}],"nvd":[{"id":"CVE-1999-1301","description":"A design flaw in the Z-Modem protocol allows the remote sender of a file to execute arbitrary programs on the client, as implemented in rz in the rzsz module of FreeBSD before 2.1.5, and possibly other programs.","status":"published","published":"1996-07-16T04:00:00Z","modified":"2026-06-16T21:50:08.943Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T13:58:19.254283Z"}]}}