{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-34790", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-03-30T20:26:18.724Z", "datePublished": "2026-04-02T14:45:47.375Z", "dateUpdated": "2026-04-03T19:55:17.524Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-02T14:45:47.375Z"}, "title": "Endian Firewall /cgi-bin/backup.cgi remove ARCHIVE Directory Traversal", "descriptions": [{"lang": "en", "value": "Endian Firewall version 3.3.25 and prior allow authenticated users to delete arbitrary files via directory traversal in the remove ARCHIVE parameter to /cgi-bin/backup.cgi. The remove ARCHIVE parameter value is used to construct a file path without sanitization of directory traversal sequences, which is then passed to an unlink() call."}], "tags": ["x_open-source"], "datePublic": "2025-12-03T00:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "affected": [{"vendor": "Endian", "product": "Endian Firewall", "versions": [{"version": "3.3.25", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:endian:firewall:3.3.25:*:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:endian:firewall:2.1.2:*:*:*:*:*:*:*"}, {"vulnerable": true, "criteria": "cpe:2.3:a:endian:firewall:2.4:*:*:*:*:*:*:*"}]}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "LOW", "version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L"}}], "references": [{"url": "https://help.endian.com/hc/en-us/sections/360004371358-Community", "name": "Endian Release Notes", "tags": ["release-notes"]}, {"name": "VulnCheck Advisory: Endian Firewall /cgi-bin/backup.cgi remove ARCHIVE Directory Traversal", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/endian-firewall-cgi-bin-backup-cgi-remove-archive-directory-traversal"}], "credits": [{"lang": "en", "value": "Alex Williams from Pellera Technologies", "type": "finder"}, {"lang": "en", "value": "VulnCheck", "type": "coordinator"}], "x_generator": {"engine": "vulncheck"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-03T19:55:05.419559Z", "id": "CVE-2026-34790", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-03T19:55:17.524Z"}}]}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.3.25]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "firewall", "vendor": "endian"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.3.25"}}], "enrichment": {"confidence": 83.0, "confidence_source": "matching", "scores": [{"score": 83.0, "source": "matching"}]}, "original": {"product": "Endian Firewall", "source": "cna", "vendor": "Endian"}, "product": "endian_firewall", "vendor": "endian_firewall"}], "analysis": {"en": {"generated_at": "2026-04-02T17:20:57.558297+00:00", "value": {"mitigation_remediation": ["Apply any available vendor patch or upgrade to a newer release that removes the flaw.", "Restrict or disable access to the /cgi-bin/backup.cgi endpoint for users who do not need backup functionality.", "Enforce strong authentication controls such as complex passwords, account lockout, and monitor for anomalous activity on the backup interface.", "Monitor system logs for unexpected file deletions and verify critical configuration files regularly to detect and respond to potential exploitation."], "summary": {"action": "Patch immediately", "impact": "Unauthorized file deletion"}, "threat_synthesis": {"affected_systems": "The flaw affects Endian Firewall products, specifically version 2.1.2, all 2.4 releases, and any release up to and including 3.3.25. Users running these or older releases should verify their version and acknowledge that the vulnerability remains present.", "description_and_impact": "Authenticated users can trigger the /cgi-bin/backup.cgi endpoint with a crafted remove ARCHIVE value that includes directory\u2011traversal sequences. The input is concatenated into a file path without sanitization and passed to an unlink() system call, allowing the deletion of arbitrary files on the firewall\u2019s filesystem. This can compromise configuration, log, or system files and could disrupt firewall operation.", "risk_and_exploitability": "The score of 7.1 indicates high severity. Exploitation requires authentication to the web interface, and the vulnerability is not listed in the known exploited vulnerabilities catalog. The likely attack path involves a web request crafted by an authenticated user to /cgi-bin/backup.cgi with a malicious remove ARCHIVE parameter, enabling arbitrary file deletion."}}}}, "created": "2026-04-02T20:12:12.548308+00:00", "updated": "2026-04-02T20:20:53.288389+00:00", "vendors": ["endian", "endian$PRODUCT$firewall", "endian_firewall", "endian_firewall$PRODUCT$endian_firewall"]}