CYBERSIXT Signal Over Noise
All CVEs
Vulnerability intelligence

CVE-2026-82078

PaperCut NG/MF Unsafe Reflection Vulnerability

PaperCut NG/MF CWE-470

An unsafe dynamic class loading vulnerability exists in the database connection utilities of PaperCut MF and PaperCut NG. The application instantiates database driver classes based on configurable driver names without validating against an allowlist of approved drivers. If an attacker can manipulate system configuration parameters, this enables the execution of arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process.

CVSS Score
9.4
Critical
EPSS — Exploit Probability
64%
Riskier than 99% of all CVEs · checked 2026-10-12
Exploitation
Confirmed in the wild
KEV since 2026-08-31
Remediation
Patch available
Federal deadline 2026-09-14
CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. Deadline for federal agencies: 2026-09-14.

NVD entry Vendor patch PoC / advisory CISA KEV

21 articles across 7 outlets · first covered Aug 28, 2026 · latest Oct 5, 2026

Coverage timeline

Related CVEs — PaperCut

CVE-2026-81578KEV CVE-2023-27351KEV