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Fencer Intel
medium 5.9

CVE-2026-0455 json

The Versal™ AI Edge Series Gen 2 Peripheral Protection Unit (XPPU) for the inter-processor interrupt (IPI) buffers does not block unauthori…

published 2d ago modified 2d ago also EUVD-2026-124636

cvss
5.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

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.

Patch / fix

  • AMD Versal™ AI Edge Series Gen 2 Adaptive SoCs 2026.1
  • AMD Versal™ Prime Series Gen 2 Adaptive SoCs (2VM3358, 2VM3558, and 2VM3858 only) 2026.1
  • AMD VivadoTM Advanced Configuration Editor for Versal™ AI Edge Series Gen 2 2026.1

Is CVE-2026-0455 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2d ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-14).

CVSS scores

assigned by version score vector
CNA 4.0 5.9 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
CNA 4.0 5.9 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • AMD Versal™ AI Edge Series Gen 2 Adaptive SoCs
  • AMD Versal™ Prime Series Gen 2 Adaptive SoCs (2VM3358, 2VM3558, and 2VM3858 only)
  • AMD VivadoTM Advanced Configuration Editor for Versal™ AI Edge Series Gen 2

Classification

Weakness
  • CWE-1220 Insufficient Granularity of Access Control

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.