{"id":"CVE-2023-30463","aliases":["EUVD-2023-34880","GHSA-46fh-f8vx-p359"],"status":"published","title":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because...","description":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00874,"percentile":0.59208,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2023-04-19T00:00:00Z","modified":"2026-10-28T02:30:42Z","products":[{"vendor":"altran","product":"picotcp"}],"references":[{"url":"https://github.com/tass-belgium/picotcp/releases","tags":["x_transferred","Release Notes","package"]},{"url":"https://georgyg.com/home/picotcp-denial-of-service-cve-2023-30463/","tags":["x_transferred","Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30463","tags":["advisory"]},{"url":"https://georgyg.com/home/picotcp-denial-of-service-cve-2023-30463"},{"url":"https://github.com/advisories/GHSA-46fh-f8vx-p359"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30463.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-30463","description":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.","status":"published","published":"2023-04-19T00:00:00Z","modified":"2025-02-05T15:11:09.208Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:35:22.640346Z"}],"euvd":[{"id":"EUVD-2023-34880","description":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.","status":"published","published":"2023-04-19T00:00:00Z","modified":"2025-02-05T15:11:09Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:05.565654Z"}],"ghsa":[{"id":"GHSA-46fh-f8vx-p359","title":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because...","description":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.","status":"published","published":"2023-04-19T12:30:21Z","modified":"2024-04-04T03:35:18Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:56:16.439649Z"}],"nvd":[{"id":"CVE-2023-30463","description":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.","status":"published","published":"2023-04-19T12:15:08.343Z","modified":"2026-06-17T05:54:46.05Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:07:56.683259Z"}],"osv":[{"id":"CVE-2023-30463","description":"Altran picoTCP through 1.7.0 allows memory corruption (and subsequent denial of service) because of an integer overflow in pico_ipv6_alloc when processing large ICMPv6 packets. This affects installations with Ethernet support in which a packet size greater than 65495 may occur.","status":"published","published":"2023-04-19T00:00:00Z","modified":"2026-10-28T02:30:42.655578036Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:31.790231Z"}]}}