A newly discovered zero-day vulnerability in the popular file compression software WinRAR is currently being exploited in active cyberattacks, raising serious security concerns for millions of users worldwide.
Cybersecurity researchers revealed that the flaw allows attackers to execute arbitrary code on a victim’s computer simply by convincing them to open a maliciously crafted RAR or ZIP archive. Once triggered, the exploit can give hackers remote access to sensitive files, install malware, or gain full control over the system without the user’s knowledge.
What makes this threat particularly alarming is that WinRAR is widely used by both individuals and businesses, meaning the potential scale of exploitation is significant. Experts say cybercriminals have already been deploying the vulnerability in targeted phishing campaigns, disguising harmful files as legitimate documents, software updates, or media files.
The software’s developer is reportedly working on an urgent patch, but until it is released, users are strongly advised to avoid opening compressed files from unknown or untrusted sources. Security specialists also recommend running updated antivirus software, enabling real-time threat detection, and considering alternative compression tools until the issue is resolved.
This incident underscores a growing trend of hackers targeting widely used software with zero-day vulnerabilities, aiming to maximize their reach before patches can be rolled out.
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