CVE-2023-27350
PaperCut MF/NG Improper Access Control Vulnerability
MITRE ATT&CK techniques
How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.
Summary
PaperCut MF/NG contains an improper access control vulnerability within the SetupCompleted class that allows authentication bypass and code execution in the context of system.
Affected software
Vendor: PaperCut · Product: MF/NG
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in PaperCut
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2026-81578 | PaperCut NG/MF Missing Authentication for Critical Function Vulnerability | 84.7% | Yes |
| CVE-2023-27351 | PaperCut NG/MF Improper Authentication Vulnerability | 78.1% | Yes |
| CVE-2026-82078 | PaperCut NG/MF Unsafe Reflection Vulnerability | 63.0% | Yes |
| CVE-2023-2533 | PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability | 28.8% | Yes |
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