CVE

CVE-2026-81578

PaperCut NG/MF Missing Authentication for Critical Function Vulnerability

PaperCut · NG/MF

Date added (CISA)

2026-08-31

Remediation due

2026-09-14

Known ransomware use

Not indicated

Remediation priority

P2 — past CISA due date

Associated with

Related to

Lazarus Group (TraderTraitor cluster) / APT38 / BlueNoroff · SPECTREcampaignCorrelated cluster2026-09-16
Qilin ransomwarecampaignCorrelated cluster2026-09-11
PowerShell-based RATcampaignCorrelated cluster2026-08-31

Description

PaperCut NG/MF contains a missing authentication for critical function vulnerability which allows an unauthenticated remote attacker to modify certain system configurations. This vulnerability can be chained with CVE-2026-82078.

Source: NVD ↗ · CISA KEV Catalog ↗