CVE-2026-87739

Medium

Description

An improper authentication vulnerability in PaperCut MF/NG allows an unauthenticated, remote attacker to trigger report generation. By submitting report generation requests without valid credentials, an attacker can generate reports and gain unauthorized access to sensitive information.

SeverityMedium
CVSS6.9
Exploit probability37. percentile0.4%
ProductPaperCut NG/MF
PublishedSep 24, 2026
First seenSep 24, 2026

How to fix

Update
  • PaperCut PaperCut NG/MF24.1.10, 25.0.13, 26.0.5 or later

Affected products

ProductAffected versionsFixed in
PaperCut PaperCut NG/MFv < 24.1.10, 25.0.0 ≤ v < 25.0.13, 26.0.0 ≤ v < 26.0.524.1.10, 25.0.13, 26.0.5

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.