Critical

AI agents exploited PaperCut flaws to breach 395 organizations

Help Net Security

September 11, 2026 at 10:05 AM

Actively Exploited

Overview

A threat actor has developed an exploit for vulnerabilities in PaperCut print management software, which they then used to breach 395 organizations across 48 countries. The attacker, believed to be Russian-speaking, created a private lab to test these vulnerabilities before deploying AI agents to automate the infiltration of these systems. As a result, at least 440 instances of PaperCut were compromised, raising concerns about the security of print management systems and the effectiveness of current defenses against automated attacks. This incident underscores the need for organizations using PaperCut to assess their security measures and patch any known vulnerabilities promptly.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: PaperCut NG/MF software
Action Required: Organizations should immediately apply any available security patches for PaperCut software and review their configurations to ensure they are secure against known vulnerabilities.
Timeline: Newly disclosed

Original Article Summary

A threat actor built a working exploit for PaperCut print management software, then handed the job of breaking into hundreds of organizations to AI agents that did most of the work on their own, according to GreyNoise. The result was at least 440 compromised PaperCut instances across 395 identified organizations in 48 countries. Attacker, believed to be Russian-speaking, first built a private lab environment with a vulnerable copy of PaperCut NG/MF and an Active Directory … More → The post AI agents exploited PaperCut flaws to breach 395 organizations appeared first on Help Net Security.

Impact

PaperCut NG/MF software

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Organizations should immediately apply any available security patches for PaperCut software and review their configurations to ensure they are secure against known vulnerabilities.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Exploit, Patch.

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