CVE-2026-67281

{"id": "CVE-2026-67281", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-67281", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-08T15:31:52.946442Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "cvd@cert.pl", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "cvd@cert.pl", "affectedData": [{"vendor": "Mikrotik", "product": "RouterOS", "versions": [{"status": "affected", "version": "7.24", "lessThan": "7.24.2", "versionType": "custom"}, {"status": "affected", "version": "7.20", "lessThan": "7.23.4", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-09-05T20:17:18.547", "references": [{"url": "https://cert.pl/en/posts/2026/09/mikrotik-routeros-cve", "tags": ["Third Party Advisory"], "source": "cvd@cert.pl"}, {"url": "https://cert.pl/en/posts/2026/09/vulnerabilities-in-mikrotik-routeros-actively-exploited/", "tags": ["Mitigation", "Third Party Advisory"], "source": "cvd@cert.pl"}, {"url": "https://forum.mikrotik.com/t/7-23-4-long-term-is-released/272801", "tags": ["Release Notes"], "source": "cvd@cert.pl"}, {"url": "https://forum.mikrotik.com/t/7-24-2-stable-is-released/272800", "tags": ["Release Notes"], "source": "cvd@cert.pl"}, {"url": "https://mikrotik.com/supportsec/september-2026-vulnerability/", "tags": ["Vendor Advisory"], "source": "cvd@cert.pl"}, {"url": "https://npratley.net/reversing-mikrotiks-silent-patch-the-routeros-7-23-4-fix-they-wouldnt-explain/", "tags": ["Exploit", "Third Party Advisory"], "source": "cvd@cert.pl"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "cvd@cert.pl", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-824"}]}], "descriptions": [{"lang": "en", "value": "RouterOS WebFig contains an unauthenticated file-read vulnerability in the /jsproxy path where a newly allocated session retains a stale uninitialized principal pointer used for file authorization. An unauthenticated attacker can prepare the allocator so that the file-serving path dereferences this pointer with sufficient rights, then supply parent-directory components in an encrypted URI to escape the WebFig file namespace and disclose root-owned files, including configuration stores containing credentials.This issue affects only 7.x branch was fixed in versions: 7.23.4 (Long-term)\u00a0and\u00a07.24.2 (Stable)"}], "lastModified": "2026-09-25T14:21:17.737", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FFFF7B28-6339-4B25-B724-69C5144E70CD", "versionEndExcluding": "7.23.4", "versionStartIncluding": "7.20"}, {"criteria": "cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A41D6B3C-D321-4C61-B3D5-00F8276CB4AC", "versionEndExcluding": "7.24.2", "versionStartIncluding": "7.24"}], "operator": "OR"}]}], "sourceIdentifier": "cvd@cert.pl"}