CVE-2026-7179

# PoC for CVE-2026-7179 (Path Traversal in binwalk WinCE plugin) # This script demonstrates the lack of sanitization leading to path traversal. def vulnerable_read_string(data): # Simulating the vulnerable function in winceextract.py # It reads a string until a null byte without checking for path traversal filename = data.split(b'\x00')[0].decode('utf-8') return filename # Malicious payload containing path traversal sequences malicious_payload = b'../../../../tmp/pwned.bin\x00' extracted_path = vulnerable_read_string(malicious_payload) print(f"[+] Extracted File Path: {extracted_path}") # If this path is used in file operations without checks, it leads to Path Traversal. print("[!] Path Traversal successful: Directory restrictions bypassed.")

{"cve": {"id": "CVE-2026-7179", "sourceIdentifier": "[email protected]", "published": "2026-04-27T23:16:03.660", "lastModified": "2026-04-29T01:00:01.613", "vulnStatus": "Deferred", "cveTags": [{"sourceIdentifier": "[email protected]", "tags": ["unsupported-when-assigned"]}], "descriptions": [{"lang": "en", "value": "A security vulnerability has been detected in OSPG binwalk up to 2.4.3. This vulnerability affects the function read_null_terminated_string of the file src/binwalk/plugins/winceextract.py of the component WinCE Extraction Plugin. Such manipulation of the argument self.file_name leads to path traversal. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. The project maintainer confirms this issue: \"I accept the existence of the Path Traversal vulnerability. However, as stated in the Github link, it reached EOL and as a result no actions should be expected.\" The GitHub repository mentions, that \"[u]sers and contributors should migrate to binwalk v3.\" This vulnerability only affects products that are no longer supported by the maintainer."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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": 1.9, "baseSeverity": "LOW", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "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:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.8, "impactScore": 3.4}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P", "baseScore": 4.3, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL"}, "baseSeverity": "MEDIUM", "exploitabilityScore": 3.1, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://github.com/dhabaleshwar/Open-Source-Vulnerabilities/blob/main/binwalk_path_traversal.md", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/802228", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/359781", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/359781/cti", "source": "[email protected]"}]}}