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TI-2026-56641 Aliases CVE-2026-82077GHSA-6392-7mrr-8qfw

PaperCut NG/MF: Remote Code Execution via Scan2Fax

Priority LOW 36CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0084 58th percentileScored 2026-11-07
Fix Fixed PaperCut NG/MF (PaperCut): 24.1.10, 25.0.13, 26.0.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PaperCutPaperCut NG/MFbefore 24.1.10; 25.0.0 to before 25.0.13; 26.0.0 to before 26.0.524.1.10, 25.0.13, 26.0.5Patch availableCNA
  • PaperCut NG/MF VendorPaperCut Affected before 24.1.10; 25.0.0 to before 25.0.13; 26.0.0 to before 26.0.5 Fixed in 24.1.10, 25.0.13, 26.0.5 Patch available CNA

Remediation

  • Fix · CNA PaperCut NG/MF (PaperCut) Fixed in 24.1.10, 25.0.13, 26.0.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    PaperCut NG/MF 24.1.10, 25.0.13, 26.0.5

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-59893 PaperCut MF/NG: User permissions are not evaluated on report generationPriority LOW 37
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82077
  2. 2026-10-03 Alias added: GHSA-6392-7mrr-8qfw
  3. 2026-10-13 Fix available: PaperCut/PaperCut NG/[email protected] · CNA

References

Other 1

  • TI-2026-56642 PaperCut MF/NG: Unsafe Dynamic Class Loading in Database Connector KEVCVSS 4.0CRITICAL 9.4
  • TI-2023-12085 Improper access control in PaperCut NG KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-02373 PaperCut MF/NG 22.0.10 (Build 65996 2023-03-27) - Remote code execution via CSRF KEVCVSS 3.1HIGH 8.8
  • TI-2026-56284 PaperCut MF/NG: Authentication Bypass KEVCVSS 4.0HIGH 8.8
  • TI-2023-12086 Improper authentication in PaperCut NG KEVCVSS 3.1HIGH 7.5
  • TI-2023-20314 PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling… CVSS 3.1CRITICAL 9.8
See all 42 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences