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THREAT OPS › Threat News › [CISA KEV] CVE-2026-81578 — PaperCut NG/MF: PaperCut NG/MF Missing Authentication for Critical Function Vulnerability

[CISA KEV] CVE-2026-81578 — PaperCut NG/MF: PaperCut NG/MF Missing Authentication for Critical Function Vulnerability

medcisa_kevPublished 2026-08-28

CVE: CVE-2026-81578 Vendor: PaperCut Product: NG/MF Vulnerability: PaperCut NG/MF Missing Authentication for Critical Function Vulnerability Date Added: 2026-08-28 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

MITRE ATT&CK techniques

Cloud ServicesT1021.007

Indicators of compromise

CVE-2026-81578cve
CVE-2026-82078cve
https://www.papercut.com/kb/Main/security-bulletin-27-aug-2026-urgent-security-advisory/url

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-81578