{"id":"CVE-2023-28768","aliases":["EUVD-2023-32403","GHSA-7vjf-qw8c-2v29"],"status":"published","title":"Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30...","description":"Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30 firmware version V4.80(ACAR.1), and XS1930-10 firmware version V4.80(ABQE.1) could allow an unauthenticated LAN-based attacker to cause denial-of-service (DoS) conditions by sending crafted frames to an affected switch.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00303,"percentile":0.23213,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-755"],"published":"2023-08-14T16:10:27Z","modified":"2026-06-17T05:48:43Z","products":[{"vendor":"zyxel","product":"xgs2220-30 firmware"},{"vendor":"zyxel","product":"xgs2220-30_firmware"},{"vendor":"zyxel","product":"xgs2220-30f_firmware"},{"vendor":"zyxel","product":"xgs2220-30hp_firmware"},{"vendor":"zyxel","product":"xgs2220-54_firmware"},{"vendor":"zyxel","product":"xgs2220-54fp_firmware"},{"vendor":"zyxel","product":"xgs2220-54hp_firmware"},{"vendor":"zyxel","product":"xmg1930-30 firmware"},{"vendor":"zyxel","product":"xmg1930-30_firmware"},{"vendor":"zyxel","product":"xmg1930-30hp_firmware"},{"vendor":"zyxel","product":"xs1930-10 firmware"},{"vendor":"zyxel","product":"xs1930-10_firmware"},{"vendor":"zyxel","product":"xs1930-12f_firmware"},{"vendor":"zyxel","product":"xs1930-12hp_firmware"}],"references":[{"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-dos-vulnerability-of-xgs2220-xmg1930-and-xs1930-series-switches","tags":["vendor-advisory","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28768"},{"url":"https://github.com/advisories/GHSA-7vjf-qw8c-2v29"}],"sources":{"cve":[{"id":"CVE-2023-28768","description":"Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30 firmware version V4.80(ACAR.1), and XS1930-10 firmware version V4.80(ABQE.1) could allow an unauthenticated LAN-based attacker to cause denial-of-service (DoS) conditions by sending crafted frames to an affected switch.","status":"published","published":"2023-08-14T16:10:27.201Z","modified":"2024-10-01T19:13:16.205Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:35:32.376766Z"}],"euvd":[{"id":"EUVD-2023-32403","description":"Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30 firmware version V4.80(ACAR.1), and XS1930-10 firmware version V4.80(ABQE.1) could allow an unauthenticated LAN-based attacker to cause denial-of-service (DoS) conditions by sending crafted frames to an affected switch.","status":"published","published":"2023-08-14T16:10:27Z","modified":"2024-10-01T19:13:16Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:27:59.918435Z"}],"ghsa":[{"id":"GHSA-7vjf-qw8c-2v29","title":"Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30...","description":"Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30 firmware version V4.80(ACAR.1), and XS1930-10 firmware version V4.80(ABQE.1) could allow an unauthenticated LAN-based attacker to cause denial-of-service (DoS) conditions by sending crafted frames to an affected switch.","status":"published","published":"2023-08-14T18:32:59Z","modified":"2024-04-04T06:55:06Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:56:46.449942Z"}],"nvd":[{"id":"CVE-2023-28768","description":"Improper frame handling in the Zyxel XGS2220-30 firmware version V4.80(ABXN.1), XMG1930-30 firmware version V4.80(ACAR.1), and XS1930-10 firmware version V4.80(ABQE.1) could allow an unauthenticated LAN-based attacker to cause denial-of-service (DoS) conditions by sending crafted frames to an affected switch.","status":"published","published":"2023-08-14T17:15:10.157Z","modified":"2026-06-17T05:48:43.763Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-755"],"updated_at":"2026-11-02T14:08:24.487686Z"}]}}