Paragon Partition Manager flaw exploited in ransomware attacks: A critical vulnerability launched


March 2, 2025 by our News Team

Paragon Partition Manager, a popular system partition manager, has been found to have five vulnerabilities that can be exploited by ransomware groups to gain administrative permissions and install malware, even if the software is not installed, prompting Microsoft to work with Paragon Software to release a fix and block the old version of the driver.

  • Vulnerabilities have been discovered and addressed by Microsoft researchers
  • At least one vulnerability is actively being exploited by ransomware groups
  • A fix has been released and old versions of the driver have been blocked by Microsoft


Paragon Partition Manager, a popular system partition manager, has recently been found to have five vulnerabilities that could potentially expose systems to malware. These vulnerabilities were discovered by Microsoft researchers and affect the BioNTdrv.sys driver. The researchers have confirmed that at least one of these vulnerabilities is actively being exploited by ransomware groups.

If these vulnerabilities are exploited, attackers can gain administrative permissions on the system, allowing them to carry out malicious activities and install malware. The flaws enable attackers to execute commands with administrative privileges, bypassing the system’s implemented protection measures. What’s more, since the driver is signed by Microsoft in Windows, attackers can exploit these vulnerabilities even if the Paragon Partition Manager is not installed on the system.

Microsoft believes that at least one of these vulnerabilities is actively being used by ransomware groups to install malware and carry out their malicious activities. The company has worked directly with Paragon Software to address the issue, and a fix has been released. Additionally, Microsoft has blocked the old version of the driver to prevent it from being executed on Windows and exploited for attacks.

Considering that the vulnerability can be exploited even by those who do not have Paragon Partition Manager installed, it is highly recommended to keep Windows updated with the latest version available. Users should also ensure that they have enabled the setting to prevent the loading of insecure drivers. For those who do have Paragon Partition Manager, it is crucial to update to the latest version of the software, as they may be at a higher risk of direct attacks using the driver.

It’s important to stay vigilant and take necessary precautions to protect our systems from potential vulnerabilities. Keeping software up to date and following best security practices can go a long way in safeguarding against potential threats.

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