---
id: "CVE-2026-0455"
page: "https://infrastack.ai/live/CVE-2026-0455"
kind: "vulnerability"
aliases: ["CVE-2026-0455"]
title: "Xilinx Versal AI Edge Gen 2: IPI buffer protection lets any processor access registers"
severity: "medium"
cvss: 5.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["amd", "embedded", "fpga", "infrastructure", "soc", "versal"]
not_affected_if: ["single-processor-domain"]
published_at: "2026-11-12T20:18:14+00:00"
first_seen_at: "2026-11-12T20:40:22+00:00"
updated_at: "2026-11-12T20:42:22+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0455", "first_seen_at": "2026-11-12T20:40:22+00:00"}]
exploit_sources: []
---

# Xilinx Versal AI Edge Gen 2: IPI buffer protection lets any processor access registers

Link for people: https://infrastack.ai/live/CVE-2026-0455 (this .md is for agents)

The Peripheral Protection Unit on the Versal AI Edge Series Gen 2 system-on-chip fails to block unauthorized access to inter-processor interrupt buffer registers. Any processor on the chip with an IPI channel can read and write the entire IPI buffer and no-buffer control register space.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-12T20:40:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-0455

## From the sources

The Versal™ AI Edge Series Gen 2 Peripheral Protection Unit (XPPU) for the inter-processor interrupt (IPI) buffers does not block unauthorized access as expected. This allows processors in the SoC with any IPI channel access the ability to both read and write to the entire IPI buffer register space as well as the IPI no-buffer register control space.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_