Public vulnerability disclosure

CVE-2026-0455

CVE-2026-0455

publishedCWE-1220

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.

Technical severity5.9 mediumCVSS 4.0 · CNA: AMD
Published2026-11-12Source updated 2026-11-12
Collected2026-11-121 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Versal™ AI Edge Series Gen 2 Adaptive SoCs
AMD
2026.1 (unaffected)
Other versions: affected
CNA: AMD
Versal™ Prime Series Gen 2 Adaptive SoCs (2VM3358, 2VM3558, and 2VM3858 only)
AMD
2026.1 (unaffected)
Other versions: affected
CNA: AMD
VivadoTM Advanced Configuration Editor for Versal™ AI Edge Series Gen 2
AMD
2026.1 (unaffected)
Other versions: affected
CNA: AMD

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 5.9
medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:H/SC:L/SI:L/SA:HCNA: AMD

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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