CVE-2021-42278

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

September 9, 2026

Last Seen

October 24, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

AI-Driven Exploitation of PaperCut Vulnerabilities Compromises 440 Servers Globally79.0

A Russian-speaking threat actor has exploited vulnerabilities CVE-2026-81578 and CVE-2026-82078 in PaperCut NG/MF software, compromising at least 440 instances across 395 organizations in 48 countries. The campaign began on August 31, 2026, utilizing hundreds of AI agents powered by OpenAI's Codex a...

AI-Driven Cyber Attacks Targeting Critical Infrastructure and Data Security78.7

A recent wave of cyber attacks orchestrated by AI agents has exploited vulnerabilities in systems like PaperCut, leading to significant breaches across various sectors including education and healthcare. The attacks utilized CVE-2026-81578 and CVE-2026-82078 to achieve remote code execution without...