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criticalbug_reportVulnerabilityPaperCut NG/MF actively exploited; second emergency patch released
PaperCut NG and MF print management software versions 24, 25, and 26 on Windows, Linux, and macOS. CVE-2026-81578 (CVSS 8.8) authentication bypass and CVE-2026-82078 (CVSS 9.4) unsafe class-loading vulnerability can be chained for pre-auth RCE.
criticalbug_reportVulnerabilityPaperCut NG/MF flaws chained for unauthenticated RCE, active exploitation
PaperCut NG and PaperCut MF (all unpatched versions). CVE-2026-81578 (CVSS 8.8, improper access control) and CVE-2026-82078 (CVSS 9.4, unsafe dynamic class loading) are chained to bypass authentication and execute arbitrary Java code.
criticalbug_reportVulnerabilityCritical vulnerabilities in PaperCut software require immediate patching
PaperCut software (specific versions not disclosed in advisory). Affects organizations using PaperCut print management solutions.
criticalbug_reportVulnerabilityPaperCut NG/MF zero-day exploited in wild; all versions affected
All versions of PaperCut NG and PaperCut MF print management software. Primary risk: Internet-exposed Application Servers with public-facing web interfaces.