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CVE-2026-82077

📛 CVE Title

PaperCut NG/MF: Remote Code Execution via Scan2Fax

Description

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.

Overview

State
PUBLISHED
Assigner (CNA)
PaperCut
CVSS severity
HIGH
CVSS score
CVSS 7.3 / 10 7.3 7.3 / 10
CVSS vector
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
Effective score
7.3 / 10 HIGH source: CNA overview
CWE(s)
CWE-22, CWE-78
Reserved
2026-08-28
Published
2026-09-24 06:43 UTC
Last updated
2026-09-24 12:45 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/82xxx/CVE-2026-82077.json
Linked Threat
CVE-2026-82077 — PaperCut NG/MF: Remote Code Execution via Scan2Fax

Affected products (1)

VendorProductVersionsPlatforms
PaperCut PaperCut NG/MF 0 (affected), 26.0.0 (affected) —

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-82077.json.

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  "containers": {
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                "id": "CVE-2026-82077",
                "options": [
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                    "Exploitation": "none"
                  },
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                  },
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                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-24T12:45:25.059939Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
        "title": "CISA ADP Vulnrichment"
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      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Piotr Bazydlo (@chudyPB) of watchTowr"
        }
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      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.3,
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            "exploitMaturity": "PROOF_OF_CONCEPT",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          ]
        },
        {
          "descriptions": [
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              "cweId": "CWE-78",
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              "lang": "en",
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        "shortName": "PaperCut"
      },
      "references": [
        {
          "url": "https://www.papercut.com/kb/Main/security-bulletin-sep-2026/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "PaperCut NG/MF: Remote Code Execution via Scan2Fax",
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    "dateReserved": "2026-08-28T00:13:21.684Z",
    "dateUpdated": "2026-09-24T12:45:33.120Z",
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