{"id":"CVE-2023-38562","aliases":["EUVD-2023-42361","GHSA-43mr-mm46-m2qq"],"status":"published","title":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston...","description":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted set of network packets can lead to memory corruption, potentially resulting in code execution. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.","severity":{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01081,"percentile":0.65399,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-415"],"published":"2024-02-20T14:45:02Z","modified":"2026-06-17T06:10:43Z","products":[{"vendor":"weston embedded","product":"uc-tcp-ip"},{"vendor":"weston-embedded","product":"uc-tcp-ip"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1829","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1829"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-38562"},{"url":"https://github.com/advisories/GHSA-43mr-mm46-m2qq"}],"sources":{"cve":[{"id":"CVE-2023-38562","description":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted set of network packets can lead to memory corruption, potentially resulting in code execution. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.","status":"published","published":"2024-02-20T14:45:02.733Z","modified":"2025-11-04T18:15:51.871Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:35:30.116696Z"}],"euvd":[{"id":"EUVD-2023-42361","description":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted set of network packets can lead to memory corruption, potentially resulting in code execution. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.","status":"published","published":"2024-02-20T14:45:02Z","modified":"2025-11-04T18:15:51Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:24.543935Z"}],"ghsa":[{"id":"GHSA-43mr-mm46-m2qq","title":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston...","description":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted set of network packets can lead to memory corruption, potentially resulting in code execution. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.","status":"published","published":"2024-02-20T15:31:05Z","modified":"2026-03-26T05:02:33Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"high"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T15:06:52.37988Z"}],"nvd":[{"id":"CVE-2023-38562","description":"A double-free vulnerability exists in the IP header loopback parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted set of network packets can lead to memory corruption, potentially resulting in code execution. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.","status":"published","published":"2024-02-20T15:15:08.02Z","modified":"2026-06-17T06:10:43.867Z","cvss":[{"version":"3.1","score":8.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:09:07.077422Z"}]}}