Microsoft has resolved a critical security issue in Notepad related to Markdown files. The flaw, identified as CVE-2026-20841, could have allowed attackers to execute remote code by tricking users into clicking malicious links embedded within Markdown files opened in Notepad. These links could launch unverified protocols, permitting attackers to load and run harmful files remotely. Although Microsoft has found no evidence of this vulnerability being exploited in real-world scenarios, the company released a patch to prevent possible attacks, enhancing user security.
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