In wolfSSL before 5.5.2, if callback functions are enabled (via the WOLFSSLCALLBACKS flag), then a malicious TLS 1.3 client or network attacker can trigger a buffer over-read on the heap of 5 bytes. (WOLFSSLCALLBACKS is only intended for debugging.)
{
"sources": [
{
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-42905",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42905",
"id": "CVE-2022-42905",
"imported": "2026-07-17T22:23:17.415Z",
"modified": "2026-06-17T05:05:34.270Z",
"published": "2022-11-07T00:15:09.643Z",
"database_specific": {
"status": "Modified"
}
}
],
"license": "CC-BY-4.0"
}