0-day Discovered in Popular Compression Tool, 7-Zip

Silent Breach has identified a 0-day vulnerability in 7-Zip that could allow file retrieval from AES-256 encrypted archives.

Want the full analysis? Download the complete 2025 Silent Breach Cyber Risk Outlook Report for in-depth data, case studies, and actionable strategies.

Silent Breach and 7-Zip are working to address this issue, and to ensure that users remain protected and informed in the meantime.

7-Zip is a popular open-source utility program that enables users to encrypt, compress and archive files. For more information or for guidance on how this issue may affect your organization, please contact Silent Breach at: hello@silentbreach.com

Silent Breach's research team uncovers new 0-days in popular systems on a regular basis and works closely with the affected parties to ensure that the vulnerabilities are properly and securely disclosed, monitored and patched.

As a standard practice, Silent Breach does not confirm, discuss or disclose any security issues or vulnerabilities until a fix has been released on all affected systems or until express permission has been provided by the relevant parties.

‍About Silent Breach:

Silent Breach is an award-winning provider of cyber security services. Our global team provides cutting-edge insights and expertise across the Data Center, Enterprise, SME, Retail, Government, Finance, Education, Automotive, Hospitality, Healthcare and IoT industries.

Learn more about our cybersecurity services

Our 24/7/365 Security Operations Centers (SOCs) are ready to serve you any time of the day, anywhere in the world.

Contact specialist
Subscribe to Our Newsletter: Stay informed. Stay secure.

Get the latest security insights, threat updates, and exclusive offers - straight to your inbox.

Thank you! You have subscribed!
Oops! Something went wrong while submitting the form.