{"id":"CVE-2026-87739","title":"An improper authentication vulnerability in PaperCut MF/NG allows an unauthenticated, remote attacker to trigger report generation","summary":"An improper authentication vulnerability in PaperCut MF/NG allows an unauthenticated, remote attacker to trigger report generation. By submitting report generation requests without valid credentials, an attacker can generate reports and …","severity":"medium","cvss":6.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y","cwe":["CWE-639"],"vendor":"PaperCut","product":"PaperCut NG/MF","affected":["ng_mf < 25.0.13","ng_mf >= 26.0.0 < 26.0.5"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T21:08:22.573","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-87739","references":[{"url":"https://www.papercut.com/kb/Main/security-bulletin-sep-2026/","label":"eb41dac7-0af8-4f84-9f6d-0272772514f4"}],"tags":["nvd","cve.org"],"epss":0.00378,"epssPercentile":0.28964,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-24T12:42:13.527939Z"},"cvssSource":"cna","ingestedAt":"2026-09-24T08:40:12.062Z","slug":"CVE-2026-87739","body":"## Overview\n\nAn improper authentication vulnerability in PaperCut MF/NG allows an unauthenticated, remote attacker to trigger report generation. By submitting report generation requests without valid credentials, an attacker can generate reports and gain unauthorized access to sensitive information.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":38,"depthScoreParts":{"impact":38,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}