CVE-2023-27351

Katalog CVE

CVSS 7.5 · High KEV · sudah dieksploitasi Dipakai ransomware EPSS 78,1%

Kerentanan Improper Authentication pada papercut mf, papercut ng. Skor CVSS 3.1 7.5 (High) menurut NVD. Masuk katalog KEV CISA pada 20 April 2026, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

20 April 2023

Terakhir diubah

1 Oktober 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

78,1% peluang dieksploitasi; lebih tinggi dari 99,5% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

PaperCut NG/MF Improper Authentication Vulnerability

Masuk KEV

20 April 2026

Tenggat CISA

4 Mei 2026 (untuk instansi federal AS)

Ransomware

Tercatat dipakai dalam kampanye ransomware

Tindakan wajib

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

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://www.papercut.com/kb/Main/PO-1216-and-PO-1219 advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27351 pemerintah AS
• https://www.zerodayinitiative.com/advisories/ZDI-23-232/ advisory pihak ketiga · vdb entry