User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.
{
"cna_assigner": "Checkmk",
"cwe_ids": [
"CWE-203"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39665.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "1.9.0"
},
{
"fixed": "1.9.48"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"cpe": "cpe:2.3:a:nagvis:nagvis:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.9.48"
}
],
"source": "CPE_RANGE"
}
]
}