VULNERABILITY INTELLIGENCE

CVE-2026-81578

CVSS score9.8 CRITICAL
EPSS probability84.73%
CISA KEVKnown exploited vulnerability
Published2026-08-28
Last modified2026-09-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

PaperCut NG/MF Missing Authentication for Critical Function Vulnerability

Vendor / product: PaperCut / NG/MF

Description

An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.

Weakness classification

  • eb41dac7-0af8-4f84-9f6d-0272772514f4: CWE-305

Primary references