{"@context":"https://openvex.dev/ns/v0.2.0","@id":"https://database.harborguard.co/cve/CVE-2026-45447/vex.json","author":"HarborGuard Database","role":"Document Creator","timestamp":"2026-06-10T13:32:20.413Z","version":1,"tooling":"HarborGuard Database (https://database.harborguard.co)","statements":[{"vulnerability":{"name":"CVE-2026-45447","@id":"https://www.cve.org/CVERecord?id=CVE-2026-45447","description":"Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\ntrigger a use-after-free during PKCS#7 signature verification.\n\nImpact summary: A use-after-free may result in process crashes, heap\ncorruption, or potentially remote code execution.\n\nWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\ndigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\nincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\nuse of the BIO by the calling app"},"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":"2026-06-10T13:32:20.413Z"}]}