{"cve":"CVE-2024-1300","nvd":{"published":"2024-04-02T08:15:53.993","modified":"2026-09-23T04:17:41.237","status":"Deferred","description":"A vulnerability in the Eclipse Vert.x toolkit causes a memory leak in TCP servers configured with TLS and SNI support. When processing an unknown SNI server name assigned the default certificate instead of a mapped certificate, the SSL context is erroneously cached in the server name map, leading to memory exhaustion. This flaw allows attackers to send TLS client hello messages with fake server names, triggering a JVM out-of-memory error.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L","score":5.4},"cwes":["CWE-772"],"references":["https://access.redhat.com/errata/RHSA-2024:1662","https://access.redhat.com/errata/RHSA-2024:1706","https://access.redhat.com/errata/RHSA-2024:1923","https://access.redhat.com/errata/RHSA-2024:2088","https://access.redhat.com/errata/RHSA-2024:2833"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:47:51.568503435+00:00"},"epss":{"cve":"CVE-2024-1300","score":0.01064,"percentile":0.64677,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-9ph3-v2vh-3qx7","url":"https://osv.dev/vulnerability/GHSA-9ph3-v2vh-3qx7","summary":"Eclipse Vert.x vulnerable to a memory leak in TCP servers","modified":"2026-02-28T05:14:31.995703Z","packages":[{"ecosystem":"Maven","name":"io.vertx:vertx-core","purl":"pkg:maven/io.vertx/vertx-core","ranges":[">=4.3.4 <4.4.8"],"fixed":["4.4.8"]},{"ecosystem":"Maven","name":"io.vertx:vertx-core","purl":"pkg:maven/io.vertx/vertx-core","ranges":[">=4.5.0 <4.5.3"],"fixed":["4.5.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}