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International Business Times UK
International Business Times UK
Technology
Rohit David

Microsoft Issues Unannounced Patch for Zero-Day LNK Vulnerability Used in Real-World Attacks

Microsoft's secret patch fixes 8-Year LNK zero-day exploited by hackers (Credit: Angel Bena : Pexels)

Cybersecurity experts warn of a stealthy Microsoft patch addressing a long-exploited Windows LNK zero-day vulnerability, CVE-2025-9491, now mitigated in November 2025 updates. Threat actors, including state-sponsored groups, have weaponized this flaw for years in espionage and malware campaigns, hiding malicious commands in shortcut files.

As searches for Windows LNK vulnerability patch and Microsoft zero-day fix spike amid Patch Tuesday alerts, organisations scramble to apply safeguards against these insidious attacks.

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