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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
PaperCut PaperCut NG/MF unaffected
Version Status Constraints
0 affected < 25.0.13
26.0.0 affected < 26.0.5

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.papercut.com/kb/Main/security-bulletin-sep-2026/ cve-icon cve-icon
History

Thu, 24 Sep 2026 07:00:00 +0000

Type Values Removed Values Added
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.
Title PaperCut NG/MF: Remote Code Execution via Scan2Fax
Weaknesses CWE-22
CWE-78
References
Metrics cvssV4_0

{'score': 7.3, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: PaperCut

Published:

Updated: 2026-09-24T06:43:35.197Z

Reserved: 2026-08-28T00:13:21.684Z

Link: CVE-2026-82077

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-24T07:16:33.457

Modified: 2026-09-24T07:16:33.457

Link: CVE-2026-82077

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-24T08:30:17Z

Weaknesses