CVE Watch1 de out. de 2026

CVE-2023-27351

PaperCut NG/MF Improper Authentication Vulnerability

CVSS

7.5

Alta

EPSS

78.1%

p100

KEV

SIM

20 de abr. de 2026

Exploit Today

0-100

Publicado: 20 de abr. de 2023 · Última mod.: 1 de out. de 2026 · CWE-287

EPSS · 30d

78.1%EPSS · 30 dias78.1%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

PaperCut / NG/MF

Vulnerabilidade

PaperCut NG/MF Improper Authentication Vulnerability

Adicionado ao KEV

20 de abr. de 2026

Corrigir até

4 de mai. de 2026

Uso conhecido em ransomware

Sim

Descrição resumida

PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.

Ação necessária

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notas

https://www.papercut.com/kb/Main/PO-1216-and-PO-1219 ; https://nvd.nist.gov/vuln/detail/CVE-2023-27351

Descrição técnica

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 SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19226.

Referências oficiais

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