A NULL pointer dereference was found in OpenLDAP server and was fixed in openldap 2.4.55, during a request for renaming RDNs. An unauthenticated attacker could remotely crash the slapd process by sending a specially crafted request, causing a Denial of Service.
{
"sources": [
{
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25692",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-25692",
"published": "2020-12-08T01:15:12.133Z",
"database_specific": {
"status": "Modified"
},
"imported": "2026-07-17T21:16:06.263Z",
"id": "CVE-2020-25692",
"modified": "2026-06-17T03:07:08.350Z"
}
],
"license": "CC-BY-4.0"
}