PaperCut — known exploited vulnerabilities
The CISA Known Exploited Vulnerabilities catalog (KEV) lists vulnerabilities that CISA has confirmed are being exploited in the wild; U.S. federal civilian agencies are required to remediate each entry by its due date. This page joins the KEV entries for PaperCut with NVD CVSS scores and CISA's ransomware-campaign flag. See our methodology or browse all CVEs.
Key findings
CISA's Known Exploited Vulnerabilities catalog lists 5 PaperCut vulnerabilities confirmed as exploited in the wild across 2 products; 2 of them (40%) are flagged as used in known ransomware campaigns. NG/MF is the most-affected product, with 4 entries (80% of the total). CISA added 3 entries in 2026 so far, compared with 1 in 2025. Across the 5 entries with an NVD CVSS score (100% of the total), the average score is 8.9; 3 entries are rated critical by NVD. The most recent addition is CVE-2026-82078 (PaperCut NG/MF Unsafe Reflection Vulnerability), added on 2026-08-31.
Affected products
| Product | Entries | Share |
|---|---|---|
| NG/MF | 4 | 80% |
| MF/NG | 1 | 20% |
Entries added per year
By date added to the KEV catalog
Exploited PaperCut vulnerabilities (5)
Newest first. CVSS scores from NVD where available.
| CVE | Product | Vulnerability | Date added | Ransomware | CVSS |
|---|---|---|---|---|---|
| CVE-2026-82078 | NG/MF | PaperCut NG/MF Unsafe Reflection Vulnerability | 2026-08-31 | — | CRITICAL9.1 |
| CVE-2026-81578 | NG/MF | PaperCut NG/MF Missing Authentication for Critical Function Vulnerability | 2026-08-31 | — | CRITICAL9.8 |
| CVE-2023-27351 | NG/MF | PaperCut NG/MF Improper Authentication Vulnerability | 2026-04-20 | Known | HIGH7.5 |
| CVE-2023-2533 | NG/MF | PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability | 2025-07-28 | — | HIGH8.4 |
| CVE-2023-27350 | MF/NG | PaperCut MF/NG Improper Access Control Vulnerability | 2023-04-21 | Known | CRITICAL9.8 |
Source: CISA Known Exploited Vulnerabilities catalog, joined with NIST NVD CVSS data. Vendor names are normalized across spellings. Compare all vendors.