CVE-2026-33261

{"id": "CVE-2026-33261", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@open-xchange.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "published": "2026-04-22T10:16:51.857", "references": [{"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html", "tags": ["Vendor Advisory", "Broken Link"], "source": "security@open-xchange.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-353"}]}], "descriptions": [{"lang": "en", "value": "A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service."}], "lastModified": "2026-04-27T17:03:09.103", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EBDA7C62-FAD4-470C-A6FE-4CF19B0BD4AD", "versionEndExcluding": "5.2.9", "versionStartIncluding": "5.2.0"}, {"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9F7AC884-348F-47B1-8853-49BFEDBEA9EA", "versionEndExcluding": "5.3.6", "versionStartIncluding": "5.3.0"}, {"criteria": "cpe:2.3:a:powerdns:recursor:5.4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4B201BAD-5A74-45E9-91FD-5E950BA18BF3"}], "operator": "OR"}]}], "sourceIdentifier": "security@open-xchange.com"}