CVE-2026-82078 Details
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.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-82078
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
3.57 Probability of exploitation activity being observed over the next 30 days (89th percentile)
CVSS score for CVE-2026-82078
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.1 Critical
Products affected by CVE-2026-82078
Papercut Ng 22.0.8
Papercut Mf 21.2.11
Papercut Mf 23.0.7
Papercut Ng 22.0.10
Papercut Mf 22.0.11
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Critical
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CVE-2026-82078 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 59 26.58%
CN 14 6.31%
BR 11 4.95%
CA 10 4.50%
SG 10 4.50%
ES 9 4.05%
FR 9 4.05%
GB 9 4.05%
DE 8 3.60%
JP 8 3.60%

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CVE-2026-82078 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 140 78.65%
Telecommunications 30 16.85%
Education 4 2.25%
Government/Politics 3 1.69%
Real Estate 1 0.56%

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