PSIRT Advisory – INTEL-SA-00451 - Intel® Quartus® Prime Advisory Intel® Quartus® Prime Advisory Corporate Pages Security {"description":"Intel\u00ae Quartus\u00ae Prime Advisory. Altera\u2019s Product Security Incident Response Team (PSIRT) advisories provide important disclosures, mitigations, and security updates.","title":"PSIRT Advisory \u2013 INTEL-SA-00451"} Altera Security Advisory: INTEL-SA-00451 Advisory Category: Software Impact of vulnerability: Escalation of Privilege Severity rating: Medium Original release: 02/09/2021 Last revised: 05/06/2026 Summary: A potential security vulnerability in the Intel® Quartus® Prime Pro and Standard edition software may allow escalation of privilege. Intel is releasing software updates to mitigate this potential vulnerability. Vulnerability Details: CVEID: CVE-2020-24481 Description: Insecure inherited permissions for the Intel® Quartus® Prime Pro and Standard edition software may allow an authenticated user to potentially enable escalation of privilege via local access. CVSS Base Score: 6.7 Medium CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H Affected products: Intel® Quartus® Prime Pro Edition before version 20.4. Intel® Quartus® Prime Standard Edition before version 20.1. Recommendations: Intel recommends updating Intel® Quartus® Prime Pro Edition to version 20.4 or later. Intel recommends updating Intel® Quartus® Prime Standard Edition to version 20.1 or later. Updates are available for download at these locations: https://www.altera.com/products/development-tools/quartus Acknowledgements: Intel would like to thank Marius Gabriel Mihai for reporting this issue. Revision Date Description 1.0 02/09/2021 Initial Release 1.1 05/06/2026 Transfer Advisory to Altera. Legal Notices and Disclaimers Altera provides these materials as-is, with no express or implied warranties. All products, dates, and figures specified are preliminary based on current expectations, and are subject to change without notice. Altera products and services described may contain design defects or errors known as errata, which may cause the product to deviate from published specifications. Current characterized errata are available on request. Altera products that have met their End of Servicing Updates may no longer receive functional and security updates. Altera technologies’ features and benefits depend on system configuration and may require enabled hardware, software, or service activation. Performance varies depending on system configuration. No product or component can be absolutely secure. Check with your system manufacturer or retailer or learn more at https://www.altera.com. Some results may have been estimated or simulated using internal Altera analysis or architecture simulation or modeling and are provided for informational purposes only. Any differences in your system hardware, software, or configuration may affect your actual performance. © Altera Corporation. Altera, the Altera logo, and other Altera marks are trademarks of Altera Corporation in the United States and other countries. Other names and brands may be claimed as the property of others.