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CVE-2025-66558

🗓️ 05 Dec 2025 18:00:49Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 8 Views

Missing ownership check in Nextcloud WebAuthn allows device takeover by guessing a long string; fixed in versions 1.4.2 and 2.4.1.

Related
Detection
Affected
Refs
NVD
Vulners
Node
OR
[
  {
    "vendor": "nextcloud",
    "product": "security-advisories",
    "versions": [
      {
        "version": "< 1.4.2",
        "status": "affected"
      },
      {
        "version": ">= 2.0.0-beta.1, < 2.4.1",
        "status": "affected"
      }
    ]
  }
]

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09 Dec 2025 16:44Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.13.1 - 4.3
EPSS0.00018
SSVC
8