CVE-2026-6521

{"id": "CVE-2026-6521", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve@gitlab.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2026-04-30T07:16:39.273", "references": [{"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21182", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@gitlab.com"}, {"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21188", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@gitlab.com"}, {"url": "https://www.wireshark.org/security/wnpa-sec-2026-39.html", "tags": ["Vendor Advisory"], "source": "cve@gitlab.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "cve@gitlab.com", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "OpenFlow v5 protocol dissector infinite loops in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service"}], "lastModified": "2026-05-01T19:27:39.780", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "77CF79F1-B53C-40A7-9570-A192D5A85ED6", "versionEndIncluding": "4.4.14", "versionStartIncluding": "4.4.0"}, {"criteria": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B52139AE-161F-406A-B28D-F874CE8B68B6", "versionEndIncluding": "4.6.4", "versionStartIncluding": "4.6.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@gitlab.com"}