7-Zip is an open-source file archiving application which features optional AES-256 encryption, support for large files, and the ability to use “any compression, conversion or encryption method”. Recently Cisco Talos has discovered multiple exploitable vulnerabilities in 7-Zip. These type of vulnerabilities are especially concerning since vendors may not be aware they are using the affected libraries. This can be of particular concern, for example, when it comes to security devices or antivirus products.
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