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INCIDENT 364Exploited vulnerabilityHIGH CONFIDENCESourced
CVE-2026-82078 added to CISA KEV: PaperCut NG/MF Unsafe Reflection Vulnerability
PaperCut NG/MF contains an unsafe reflection vulnerability that allows an attacker to manipulate system configuration parameters and execute arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process. This vulnerability can be chained with CVE-2026-81578. Product: PaperCut NG/MF. 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). Follo…
Last evidence update
31 AUG 2026 · 12:00 UTC
Source count
5
Status
high confidence
GovernmentUtilitiesCVE-2026-82078CVE-2026-81578
Observation history
How this record has evolved as evidence accumulated.
01 SEP · 05:22 UTC
Second independent source
01 SEP · 05:22 UTC
Initial report
01 SEP · 05:22 UTC
Second independent source
14 SEP · 05:22 UTC
Second independent source
14 SEP · 05:22 UTC
Confidence upgraded
14 SEP · 05:22 UTC
Status changed
14 SEP · 05:22 UTC
Second independent source
Evidence
NVD · primary
CVE-2026-81578 (HIGH)
NVD · primary
CVE-2026-82078 (CRITICAL)
CISA KEV · high
CVE-2026-82078 added to CISA KEV: PaperCut NG/MF Unsafe Reflection Vulnerability
CISA KEV · high
CVE-2026-81578 added to CISA KEV: PaperCut NG/MF Missing Authentication for Critical Function Vulnerability
CISA · high
CISA Adds Two Known Exploited Vulnerabilities to Catalog