{"id":"CVE-2023-39541","aliases":["EUVD-2023-43251","GHSA-4mgv-g5j9-fr8q"],"status":"published","title":"A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston...","description":"A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv6 ICMPv6 packet.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00811,"percentile":0.57368,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-126"],"published":"2024-02-20T14:45:03Z","modified":"2026-06-17T06:12:33Z","products":[{"vendor":"silicon labs","product":"gecko platform"},{"vendor":"weston embedded","product":"uc-tcp-ip"},{"vendor":"weston-embedded","product":"uc-tcp-ip"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2023-1828","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1828"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-39541"},{"url":"https://github.com/advisories/GHSA-4mgv-g5j9-fr8q"}],"sources":{"cve":[{"id":"CVE-2023-39541","description":"A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv6 ICMPv6 packet.","status":"published","published":"2024-02-20T14:45:03.331Z","modified":"2025-11-04T18:16:35.984Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:35:33.138994Z"}],"euvd":[{"id":"EUVD-2023-43251","description":"A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv6 ICMPv6 packet.","status":"published","published":"2024-02-20T14:45:03Z","modified":"2025-11-04T18:16:35Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T19:49:24.543935Z"}],"ghsa":[{"id":"GHSA-4mgv-g5j9-fr8q","title":"A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston...","description":"A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv6 ICMPv6 packet.","status":"published","published":"2024-02-20T15:31:05Z","modified":"2026-03-26T05:02:33Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-125","CWE-126"],"updated_at":"2026-11-02T15:06:52.37988Z"}],"nvd":[{"id":"CVE-2023-39541","description":"A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv6 ICMPv6 packet.","status":"published","published":"2024-02-20T15:15:08.533Z","modified":"2026-06-17T06:12:33.53Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-126","CWE-125"],"updated_at":"2026-11-02T14:09:07.077422Z"}]}}