# Security Updates - CVE-2021-3287 | ManageEngine OpUtils ## CVE-2021-3287 ### Unauthenticated Remote Code Execution (RCE) vulnerability due to general bypass for the deserialization class. | Vulnerability Details | | |---|---| | Impact | **CVSS V3 rating: 10 (Critical)** | | Reported | 21st January, 2021 | | Reported by | Johannes Mortiz, an independent Security researcher | | Fixed | 8th February, 2021 | | Affected Builds | → Builds 125219 and below | | Fixed in | Builds 125220/125314 | | Overview | Unauthenticated Remote Code Execution (RCE) vulnerability due to general bypass for the deserialization class. | | Recommended Fix | **→ For builds 125219 and below, please upgrade to [OpUtils version 125220](https://www.manageengine.com/products/oputils/service-packs.html?CVE-2021-3287)** | ### Description Unauthenticated Remote Code Execution (RCE) vulnerability due to general bypass for the deserialization class. We recommend that you upgrade to [OpUtils version 125220](https://www.manageengine.com/products/oputils/service-packs.html?12116cve) or contact our support team at [oputils-support@manageengine.com](mailto:oputils-support@manageengine.com) to fix this issue. ### Source and Acknowledgements Find out more about CVE-2020-28653 from the [CVE dictionary](https://nvd.nist.gov/vuln/detail/CVE-2021-3287). ### Need Help? For clarification or corrections please contact our [support team](https://www.manageengine.com/network-monitoring/support.html) or email us at [oputils-support@manageengine.com](mailto:oputils-support@manageengine.com).