ACTIVELY EXPLOITED
CVE-2023-27350: PaperCut MF/NG Improper Access Control Vulnerability
| Vendor | PaperCut |
|---|---|
| Product | MF/NG |
| Actively exploited | Yes |
| Added to CISA KEV | 21 Apr 2023 |
| CISA federal deadline | 12 May 2023 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-284 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
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.
SOURCES
Other PaperCut flaws
- CVE-2026-82078: PaperCut NG/MF Unsafe Reflection Vulnerability
- CVE-2026-81578: PaperCut NG/MF Missing Authentication for Critical Function Vulnerability
- CVE-2023-27351: PaperCut NG/MF Improper Authentication Vulnerability
- CVE-2023-2533: PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.