PSIRT Advisory – INTEL-SA-00957 - Intel® FPGA Firmware Advisory Intel® FPGA Firmware Advisory Corporate Pages Security {"description":"Intel\u00ae FPGA Firmware Advisory. Altera\u2019s Product Security Incident Response Team (PSIRT) advisories provide important disclosures, mitigations, and security updates.","title":"PSIRT Advisory \u2013 INTEL-SA-00957"} Altera Security Advisory: INTEL-SA-00957 Advisory Category: Firmware Impact of vulnerability: Information Disclosure Severity rating: Medium Original release: 11/14/2023 Last revised: 05/06/2026 Summary: A potential security vulnerability in some Intel® Field Programmable Gate Array (FPGA) products may allow information disclosure. Intel is releasing firmware updates to mitigate this potential vulnerability. The potential vulnerability is in the Arm Trusted Firmware that runs on the HPS. Only Altera products are affected. Vulnerability Details: CVEID: CVE-2023-22327 Description: Out-of-bounds write in Arm Trusted Firmware for some Intel® FPGA products before version 2.8.1 may allow a privileged user to potentially enable information disclosure via local access. CVSS Base Score: 6.0 Medium CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Affected products: Intel® Agilex™ 7 FPGA and SoC FPGA product families. Intel® Stratix® 10 FPGA and SoC FPGA product families. Recommendations: Intel recommends updating the affected Arm Trusted Firmware for FPGA product families above to version 2.8.1 or later. Updates are available for download at this location: https://github.com/altera-opensource/arm-trusted-firmware/commits/socfpga_v2.8.1 Acknowledgements: Intel would like to thank Christian Lindenmeier and Marcel Busch for reporting this issue. Revision Date Description 1.0 11/14/2023 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.