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CVE-2026-81578

eb41dac7-0af8-4f84-9f6d-0272772514f4
CRITICAL
CVSS Score:9.8/10
Analyzed
Published: 8/28/2026
Modified: 9/14/2026
6 Affected Products
Risk Assessment
100%
Exploitability
100%
Impact
Overall Risk: 98%
Vulnerability 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.

CVSS v3.1 Score
9.8
CRITICAL
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
Exploitability
5.9
Impact
Attack Vector Analysis
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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