CVE-2023-3486: PaperCut MF

High severity, CVSS 7.5. EPSS: 79.2% chance of exploitation in the next 30 days.

An authentication bypass exists in PaperCut NG versions 22.0.12 and prior that could allow a remote, unauthenticated attacker to upload arbitrary files to the PaperCut NG host’s file storage. This could exhaust system resources and prevent the service from operating as expected.

Affected products

• PaperCut PaperCut MF: before 22.1.3 (fixed in 22.1.3)
• PaperCut PaperCut NG: before 22.1.3 (fixed in 22.1.3)

Published 2023-07-25. Last modified 2026-06-17.