Notepad — Cyber Threats, Attacks & Incidents

Threat entity extracted from intelligence sources

Frequency
9
occurrences
First Seen
February 11, 2026
Last Seen
April 17, 2026

Related Threat Clusters

  • Hackers Exploit QEMU VMs to Evade Detection and Deploy Ransomware

    Hackers are utilizing QEMU, an open-source virtual machine emulator, to create hidden Linux environments within Windows systems, effectively evading endpoint security tools. This method allows for long-term access,…

    8 articles · Updated April 17, 2026
  • Vulnerability in Notepad's Markdown Feature Allows Remote Code Execution

    Researchers have discovered a vulnerability in Notepad's newly added Markdown support that can be exploited for remote code execution (RCE). This flaw, tracked as CVE-2026-20841 with a severity score of 8.8, was…

    73 articles · Updated February 11, 2026
  • Microsoft Addresses Six Actively Exploited Zero-Day Vulnerabilities

    On February 10, 2026, Microsoft released a security update addressing 59 vulnerabilities, including six zero-day flaws that were actively exploited prior to the patch. The vulnerabilities affect various Microsoft…

    70 articles · Updated February 10, 2026
  • Windows 11 Notepad Vulnerability Linked to New Features

    Microsoft's recent updates to the Windows 11 Notepad app have introduced a remote code execution vulnerability. This flaw allows hackers to execute arbitrary code due to the addition of new features such as formatting…

    2 articles · Updated February 11, 2026
  • Critical Windows Shell Zero-Day Vulnerability Exploited

    Microsoft has released updates to address a critical zero-day vulnerability in Windows Shell, tracked as CVE-2026-21510, which is actively being exploited. This security flaw allows remote attackers to bypass essential…

    5 articles · Updated February 11, 2026

Recent Intelligence Reports

  • Hackers dodging security tools by dropping secret QEMU virtual machines inside Windows — Cybernews · April 17, 2026
  • Microsoft plugs remote code vulnerability in Notepad app on Windows 11 — Business-Standard · February 12, 2026
  • Extra features for Windows 11 Notepad go beyond worries about bloat, as new security flaw shows — Tweaktown · February 11, 2026
  • Microsoft fixes Notepad flaw that could trick users into clicking malicious Markdown links — Theverge · February 11, 2026
  • Bloat Risk? Microsoft's Notepad Upgrade Also Introduced a Vulnerability — Uk.Pcmag · February 11, 2026
  • Windows Notepad App Remote Code Execution Vulnerability : r/sysadmin — Reddit · February 11, 2026
  • Thanks to Microsoft adding all those extra features to Notepad, it now unfortunately sports one more — Pcgamer · February 11, 2026
  • Notepad's new Markdown powers served with a side of RCE — Theregister · February 11, 2026

CVSS v3.1 Breakdown