CVE-2026-21671

{"id": "CVE-2026-21671", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "support@hackerone.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.3}]}, "published": "2026-03-12T15:16:13.630", "references": [{"url": "https://www.veeam.com/kb4831", "tags": ["Vendor Advisory"], "source": "support@hackerone.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-94"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability allowing an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication."}, {"lang": "es", "value": "Una vulnerabilidad que permite a un usuario autenticado con el rol de Administrador de Copias de Seguridad realizar ejecuci\u00f3n remota de c\u00f3digo (RCE) en implementaciones de alta disponibilidad (HA) de Veeam Backup & Replication."}], "lastModified": "2026-03-31T13:17:32.803", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:veeam:veeam_backup_\\&_replication:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F7C6B2B-8DFE-4FF7-A990-04BB209D5031", "versionEndIncluding": "13.0.1.1071", "versionStartIncluding": "13.0.0.496"}], "operator": "OR"}]}], "sourceIdentifier": "support@hackerone.com"}