PaperCut Flaws Exploited in AI-Powered Attacks
Two recent PaperCut NG/MF vulnerabilities have been exploited in AI-powered attacks that hit hundreds of organizations worldwide, GreyNoise reports.
Tracked as CVE-2026-82078 and CVE-2026-81578, the security defects were disclosed on August 27 as zero-days and patched the next day.
They can allow remote unauthenticated attackers to bypass authentication and execute arbitrary code on vulnerable PaperCut NG/MF instances.
Several days later, WatchTowr threat intelligence head Jake Knott warned that the activity around the two vulnerabilities had been intensifying. Knott believed at the time that initial access brokers were likely behind the exploitation.
This week, threat intelligence firm GreyNoise revealed that a Russian-speaking threat actor has used AI to build, test, and deploy exploits against 440 PaperCut NG/MF deployments.
The threat actor targeted the vulnerable PaperCut instances of 395 organizations in 48 countries for remote code execution (RCE) and credential harvesting.
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