In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv and psa_cipher_encrypt allow policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.
{
"license": "CC-BY-4.0",
"sources": [
{
"id": "CVE-2021-45450",
"published": "2021-12-21T07:15:06.727Z",
"imported": "2026-07-17T20:45:55.065Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-45450",
"modified": "2026-06-17T04:13:23.583Z",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45450",
"database_specific": {
"status": "Modified"
}
}
]
}