CVE-2026-0455

medium

Description

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.

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-8027.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-124636

Details

Source: Mitre, NVD

Published: 2026-11-12

Updated: 2026-11-13

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

CVSS v4

Base Score: 5.9

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:H/SC:L/SI:L/SA:H

Severity: Medium

EPSS

EPSS: 0.00136