{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-7383/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-10T07:47:47.578Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-7383","@id":"https://www.cve.org/CVERecord?id=CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination\nbuffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap\nbuffer overflow.\n\nImpact summary: A heap buffer overflow may lead to a crash or possibly\nattacker controlled code execution or other undefined behaviour.\n\nIn ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination\nsize for Unicode output is computed in a signed int: by left shift\nof the input character count for BMPSTRING (UTF-16) and\nUNIVERSALSTRING ("},"products":[{"@id":"cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*","identifiers":{"cpe23":"cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*"}}],"status":"affected","action_statement":"Update to a fixed version: 1.0.2zq, 1.1.1zh, 3.0.21, 3.4.6, 3.5.7, 3.6.3, 4.0.1.","timestamp":"2026-06-10T07:47:47.578Z"}]}