Exploited Vulnerabilities DailyCVE-2023-27351: PaperCut NG/MF
EPSS78.0%No. 643 of 1739 in KEV
CVE year2023~3 yrs before listing
Same vendor in KEV5
Same product4
| Field | Value |
|---|---|
| Vendor | PaperCut |
| Product | NG/MF |
| Name | PaperCut NG/MF Improper Authentication Vulnerability |
| Added to KEV | 2026-04-20 |
| US federal due date | 2026-05-04 |
| Ransomware use | Known |
| CWE | CWE-287 |
CISA description
PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2026-82078 | PaperCut NG/MF | 2026-08-31 | 63.5% | Unknown |
| CVE-2026-81578 | PaperCut NG/MF | 2026-08-31 | 85.5% | Unknown |
| CVE-2023-2533 | PaperCut NG/MF | 2025-07-28 | 28.6% | Unknown |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A PaperCut NG/MF vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-04-20.