What’s Vulnerable › Vulnerabilities

CVE-2022-23822

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-04-27 · updated 2026-06-17
• Weakness: CWE-863

Description

In this physical attack, an attacker may potentially exploit the Zynq-7000 SoC First Stage Boot Loader (FSBL) by bypassing authentication and loading a malicious image onto the device. This in turn may further allow the attacker to perform additional attacks such as such as using the device as a decryption oracle. An anticipated mitigation via a 2022.1 patch will resolve the issue.

Affected products

• Xilinx Zynq-7000 Firmware: before 2022.1 — fixed in 2022.1
• Xilinx Zynq-7000S Firmware: before 2022.1 — fixed in 2022.1

How to fix

Upgrade to a fixed version: Xilinx Zynq-7000 Firmware 2022.1; Xilinx Zynq-7000S Firmware 2022.1. Check the vendor advisory for mitigations.

References

• https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsbl
• https://support.xilinx.com/s/article/76974
• https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsbl
• https://support.xilinx.com/s/article/76974

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