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WinRAR Vulnerability Exploited: Code Smuggling Attacks Observed

WinRAR Vulnerability Exploited: Code Smuggling Attacks Observed

First seen 11 Dec 2025, 13:51 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

A vulnerability in WinRAR, present until version 7.12 Beta 1, allows attackers to inject malicious code through specially crafted RAR files. The US cybersecurity agency CISA has added this vulnerability to its catalog of Known Exploited Vulnerabilities, indicating active exploitation. Users are advised to update to a newer version promptly to mitigate risks.

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