CRITICAL🚩 CISA KEV⚡ EXPLOIT🇵🇱 Wersja polska

CVE-2023-27350

CVSS 9.8v3.1pub. 2023-04-20upd. 2025-10-27

This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SetupCompleted class. The issue results from improper access control. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-18987.

🇵🇱 Read Polish description →

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Papercut Mf
APP
Papercut
8.0 – 20.1.7 (excl.)21.0.0 – 21.2.11 (excl.)22.0.0 – 22.0.9 (excl.)
Papercut Ng
APP
Papercut
8.0 – 20.1.7 (excl.)21.0.0 – 21.2.11 (excl.)22.0.0 – 22.0.9 (excl.)

CISA KEV — detailsi

Vendori: PaperCut ↗
Producti: MF/NG
Added to KEVi: April 21, 2023
Remediation deadline (US Federal)i: May 12, 2023(overdue)
Ransomwarei: Active ransomware campaigns exploit this vulnerability

🔧Advisory PaperCut↗🇺🇸CISA KEV (original)↗

Required action (CISA)i

Apply updates per vendor instructions.

CISA descriptioni

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.

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