CVE-2023-26249

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html", "name": "https://www.knot-resolver.cz/2023-01-26-knot-resolver-5.6.0.html", "tags": ["Release Notes", "Vendor Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially causing a denial of service. Specifically, a single client query may lead to a hundred TCP connection attempts if a DNS server closes connections without providing a response."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-770"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2023-26249", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"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:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}}, "publishedDate": "2023-02-21T02:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "5.6.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-03-02T23:20Z"}