{"id":"JLSEC-2026-718","summary":"Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted...","details":"Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow.","modified":"2026-07-18T00:02:21.196554813Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-5264","GHSA-w5qh-hw7x-9w39","EUVD-2026-21214"],"database_specific":{"license":"CC-BY-4.0","sources":[{"id":"CVE-2026-5264","imported":"2026-07-17T22:30:09.455Z","modified":"2026-06-17T10:58:42.543Z","published":"2026-04-09T22:16:36.790Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-5264","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5264","database_specific":{"status":"Analyzed"}},{"url":"https://api.github.com/advisories/GHSA-w5qh-hw7x-9w39","html_url":"https://github.com/advisories/GHSA-w5qh-hw7x-9w39","id":"GHSA-w5qh-hw7x-9w39","imported":"2026-07-17T22:30:09.625Z","modified":"2026-04-29T18:31:32Z","published":"2026-04-10T00:30:31Z"},{"url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-21214","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-21214","id":"EUVD-2026-21214","imported":"2026-07-17T22:30:19.538Z","modified":"2026-04-10T13:55:41Z","published":"2026-04-09T21:43:12Z"}]},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-w5qh-hw7x-9w39"},{"type":"WEB","url":"https://github.com/wolfssl/wolfssl/pull/10076"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5264"}],"affected":[{"package":{"name":"wolfSSL_jll","ecosystem":"Julia","purl":"pkg:julia/wolfSSL_jll?uuid=98c43586-9870-5ae5-ab22-acc77b9bbdb5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.9.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-718.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}