{"id":"CVE-2021-26730","aliases":["EUVD-2021-13517","GHSA-wj6f-q7qm-jq4x"],"status":"published","title":"spx_restservice Login_handler_func Subfunction Stack-Based Buffer Overflow","description":"A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01331,"percentile":0.7133,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2022-10-24T00:00:00Z","modified":"2026-06-17T03:43:44Z","products":[{"vendor":"lanner inc","product":"iac-ast2500a"},{"vendor":"lannerinc","product":"iac-ast2500a_firmware"}],"references":[{"url":"https://www.nozominetworks.com/blog/vulnerabilities-in-bmc-firmware-affect-ot-iot-device-security-part-1/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://www.nozominetworks.com/labs/vulnerability-advisories/cve-2021-26730/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26730"},{"url":"https://github.com/CVEProject/cvelist/blob/master/2021/26xxx/CVE-2021-26730.json"},{"url":"https://www.nozominetworks.com/labs/vulnerability-advisories/CVE-2021-26730/"},{"url":"https://github.com/advisories/GHSA-wj6f-q7qm-jq4x"}],"sources":{"cve":[{"id":"CVE-2021-26730","title":"spx_restservice Login_handler_func Subfunction Stack-Based Buffer Overflow","description":"A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.","status":"published","published":"2022-10-24T00:00:00Z","modified":"2025-05-07T15:40:12.898Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2021-13517","description":"A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.","status":"published","published":"2022-10-24T00:00:00Z","modified":"2025-05-07T15:40:12Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:32:53.098709Z"}],"ghsa":[{"id":"GHSA-wj6f-q7qm-jq4x","title":"A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function...","description":"A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.","status":"published","published":"2022-10-24T19:00:17Z","modified":"2023-01-27T05:02:03Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:42:00.879238Z"}],"nvd":[{"id":"CVE-2021-26730","description":"A stack-based buffer overflow vulnerability in a subfunction of the Login_handler_func function of spx_restservice allows an attacker to execute arbitrary code with the same privileges as the server user (root). This issue affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0.","status":"published","published":"2022-10-24T14:15:48.243Z","modified":"2026-06-17T03:43:44.49Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}