{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-82077", "assignerOrgId": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "state": "PUBLISHED", "assignerShortName": "PaperCut", "dateReserved": "2026-08-28T00:13:21.684Z", "datePublished": "2026-09-24T06:43:35.197Z", "dateUpdated": "2026-09-25T03:55:17.714Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "eb41dac7-0af8-4f84-9f6d-0272772514f4", "shortName": "PaperCut", "dateUpdated": "2026-09-24T06:43:35.197Z" }, "title": "PaperCut NG/MF: Remote Code Execution via Scan2Fax", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-22", "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE" } ] }, { "descriptions": [ { "lang": "en", "cweId": "CWE-78", "description": "CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection')", "type": "CWE" } ] } ], "affected": [ { "vendor": "PaperCut", "product": "PaperCut NG/MF", "versions": [ { "status": "affected", "version": "0", "lessThan": "25.0.13", "versionType": "semver" }, { "status": "affected", "version": "26.0.0", "lessThan": "26.0.5", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "An improper limitation of a pathname to a restricted directory (path traversal) vulnerability in the Scan-to-Fax component of PaperCut NG and PaperCut MF allows an authenticated administrator to execute arbitrary commands on the underlying host via crafted fax provider settings.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "An improper limitation of a pathname to a restricted directory (path traversal) vulnerability in the Scan-to-Fax component of PaperCut NG and PaperCut MF allows an authenticated administrator to execute arbitrary commands on the underlying host via crafted fax provider settings.
" } ] } ], "references": [ { "url": "https://www.papercut.com/kb/Main/security-bulletin-sep-2026/" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P" } } ], "credits": [ { "lang": "en", "value": "Piotr Bazydlo (@chudyPB) of watchTowr", "type": "finder" } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.5" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-24T00:00:00+00:00", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-82077" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-25T03:55:17.714Z" } } ] } }