CVE-2026-41858

{"id": "CVE-2026-41858", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@vmware.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-06-04T03:16:19.790", "references": [{"url": "https://www.cloudfoundry.org/blog/cve-2026-41858-brute-forceable-windows-admin-creds/", "source": "security@vmware.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security@vmware.com", "description": [{"lang": "en", "value": "CWE-338"}]}], "descriptions": [{"lang": "en", "value": "Weak Randomness / Insecure Cryptographic Primitive (CWE-338) in Get-RandomPassword in BOSH-Ecosystem / windows-utilities-release allows a network attacker to estimate VM boot time and reconstruct a small candidate list to recover the Administrator password. The randomize_password job exists solely to lock the local Administrator account behind an unguessable password as a hardening control. Because the password is derived from a predictable, clock-seeded PRNG, a network attacker who can estimate VM boot time can reconstruct a small candidate list and recover the Administrator password, defeating the hardening control.\n\nAffected versions:\n- windows-utilities-release: all versions prior to v0.23.0 (inclusive); fixed in v0.23.0 or later"}], "lastModified": "2026-06-04T15:35:18.623", "sourceIdentifier": "security@vmware.com"}