Recently patched PaperCut zero-days used in data theft attacks
Two vulnerabilities in print management software exploited before patching; organizations urged to update immediately

Key Takeaways
- Two zero-day vulnerabilities in PaperCut NG and MF were exploited before patches were released last week.
- The flaws are now being actively abused in data theft attacks targeting unpatched systems.
- Unauthenticated remote code execution is possible through the exploited flaws.
- Users must update to the latest patched versions to mitigate the risk.
- The full extent of attacks and threat actor attribution are currently unreported.
Related Security News
CISA Adds Two Citrix NetScaler Vulnerabilities to Known Exploited Catalog
The Cybersecurity and Infrastructure Security Agency (CISA) has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation. CVE-2026-88771 involves improper input validation and CVE-2026-88772 involves improper restriction of operations within the bounds of a memory buffer, both affecting Citrix NetScaler products. The additions trigger remediation requirements under Binding Operational Directive 26-04 for Federal Civilian Executive Branch agencies.



