CVE-2026-81578 - PaperCut NG/MF Missing Authentication for Critical Function Vulnerability
PaperCut NG/MF contains a missing authentication for critical function vulnerability which allows an unauthenticated remote attacker to modify certain system configurations. This vulnerability can be chained with CVE-2026-82078.
- Severity
- critical
- Product
- PaperCut NG/MF
- Published
- 2026-08-31
- EPSS
- 0.852
- CISA KEV
- Known exploited
- Ransomware
- Known campaign use
References and validation
- https://github.com/search?q=CVE-2026-81578&type=repositories
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-81578.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2026-81578
Entries are refreshed from CISA KEV and FIRST EPSS. Validate applicability before testing.