{"id":"CVE-2019-1892","aliases":["EUVD-2019-10449","GHSA-4r8c-mv24-j28q"],"status":"published","title":"Cisco Small Business Series Switches Memory Corruption Vulnerability","description":"A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a memory corruption on an affected device. The vulnerability is due to improper validation of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS packet to the management web interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a denial of service (DoS) condition.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/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":0.01772,"percentile":0.78311,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2019-07-06T01:15:12Z","modified":"2026-06-17T02:29:32Z","products":[{"vendor":"cisco","product":"cisco small business 300 series managed switches"},{"vendor":"cisco","product":"esw2-350g52dc_firmware"},{"vendor":"cisco","product":"esw2-550x48dc_firmware"},{"vendor":"cisco","product":"sf200-24_firmware"},{"vendor":"cisco","product":"sf200-24p_firmware"},{"vendor":"cisco","product":"sf200-48_firmware"},{"vendor":"cisco","product":"sf200-48p_firmware"},{"vendor":"cisco","product":"sf300-08_firmware"},{"vendor":"cisco","product":"sf300-24_firmware"},{"vendor":"cisco","product":"sf300-24mp_firmware"},{"vendor":"cisco","product":"sf300-24p_firmware"},{"vendor":"cisco","product":"sf300-24pp_firmware"},{"vendor":"cisco","product":"sf300-48_firmware"},{"vendor":"cisco","product":"sf300-48p_firmware"},{"vendor":"cisco","product":"sf300-48pp_firmware"},{"vendor":"cisco","product":"sf302-08_firmware"},{"vendor":"cisco","product":"sf302-08mp_firmware"},{"vendor":"cisco","product":"sf302-08mpp_firmware"},{"vendor":"cisco","product":"sf302-08p_firmware"},{"vendor":"cisco","product":"sf302-08pp_firmware"},{"vendor":"cisco","product":"sf500-24_firmware"},{"vendor":"cisco","product":"sf500-24mp_firmware"},{"vendor":"cisco","product":"sf500-24p_firmware"},{"vendor":"cisco","product":"sf500-48_firmware"},{"vendor":"cisco","product":"sf500-48mp_firmware"},{"vendor":"cisco","product":"sf500-48p_firmware"},{"vendor":"cisco","product":"sg200-18_firmware"},{"vendor":"cisco","product":"sg200-26_firmware"},{"vendor":"cisco","product":"sg200-26p_firmware"},{"vendor":"cisco","product":"sg200-50_firmware"},{"vendor":"cisco","product":"sg200-50p_firmware"},{"vendor":"cisco","product":"sg300-10_firmware"},{"vendor":"cisco","product":"sg300-10mp_firmware"},{"vendor":"cisco","product":"sg300-10mpp_firmware"},{"vendor":"cisco","product":"sg300-10p_firmware"},{"vendor":"cisco","product":"sg300-10pp_firmware"},{"vendor":"cisco","product":"sg300-10sfp_firmware"},{"vendor":"cisco","product":"sg300-20_firmware"},{"vendor":"cisco","product":"sg300-28_firmware"},{"vendor":"cisco","product":"sg300-28mp_firmware"},{"vendor":"cisco","product":"sg300-28p_firmware"},{"vendor":"cisco","product":"sg300-28pp_firmware"},{"vendor":"cisco","product":"sg300-28sfp_firmware"},{"vendor":"cisco","product":"sg300-52_firmware"},{"vendor":"cisco","product":"sg300-52mp_firmware"},{"vendor":"cisco","product":"sg300-52p_firmware"},{"vendor":"cisco","product":"sg500-28_firmware"},{"vendor":"cisco","product":"sg500-28mpp_firmware"},{"vendor":"cisco","product":"sg500-28p_firmware"},{"vendor":"cisco","product":"sg500-52_firmware"},{"vendor":"cisco","product":"sg500-52mp_firmware"},{"vendor":"cisco","product":"sg500-52p_firmware"},{"vendor":"cisco","product":"sg500x-24_firmware"},{"vendor":"cisco","product":"sg500x-48_firmware"},{"vendor":"cisco","product":"sg500x-48mp_firmware"},{"vendor":"cisco","product":"sg500x-48p_firmware"},{"vendor":"cisco","product":"sg500x24mpp_firmware"},{"vendor":"cisco","product":"sg500xg8f8t_firmware"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-sbss-memcorrupt","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1892"},{"url":"https://github.com/advisories/GHSA-4r8c-mv24-j28q"}],"sources":{"cve":[{"id":"CVE-2019-1892","title":"Cisco Small Business Series Switches Memory Corruption Vulnerability","description":"A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a memory corruption on an affected device. The vulnerability is due to improper validation of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS packet to the management web interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a denial of service (DoS) condition.","status":"published","published":"2019-07-06T01:15:12.767Z","modified":"2024-11-19T19:03:39.713Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:20:25.661187Z"}],"euvd":[{"id":"EUVD-2019-10449","description":"A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a memory corruption on an affected device. The vulnerability is due to improper validation of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS packet to the management web interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a denial of service (DoS) condition.","status":"published","published":"2019-07-06T01:15:12Z","modified":"2024-11-19T19:03:39Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:55.637912Z"}],"ghsa":[{"id":"GHSA-4r8c-mv24-j28q","title":"A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business...","description":"A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a memory corruption on an affected device. The vulnerability is due to improper validation of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS packet to the management web interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a denial of service (DoS) condition.","status":"published","published":"2022-05-24T16:49:42Z","modified":"2024-04-04T01:12:32Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:55:56.17809Z"}],"nvd":[{"id":"CVE-2019-1892","description":"A vulnerability in the Secure Sockets Layer (SSL) input packet processor of Cisco Small Business 200, 300, and 500 Series Managed Switches could allow an unauthenticated, remote attacker to cause a memory corruption on an affected device. The vulnerability is due to improper validation of HTTPS packets. An attacker could exploit this vulnerability by sending a malformed HTTPS packet to the management web interface of the affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a denial of service (DoS) condition.","status":"published","published":"2019-07-06T02:15:11.293Z","modified":"2026-06-17T02:29:32.81Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.0","score":7.5,"vector":"CVSS:3.0/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"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:05:19.195714Z"}]}}