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CVE-2026-40670

Medium priority
Needs evaluation

Improper check for unusual or exceptional conditions in AMD 5.9 Secure Encrypted Virtualization - Se…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-40669

Medium priority
Needs evaluation

An off-by-one error in AMD Secure Encrypted Virtualization 4.0 (SEV) firmware could allow an attacke…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-40668

Medium priority
Needs evaluation

Authentication bypass by spoofing in AMD Secure Encrypted 4.6 Virtualization (SEV) firmware could al…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-28249

Medium priority
Needs evaluation

Improper preservation of consistency between independent 4.6 representations of shared state in AMD…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-28248

Medium priority
Needs evaluation

Improper enforcement of behavioral workflow in AMD Secure 5.9 Encrypted Virtualization (SEV) firmwar…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-28247

Medium priority
Needs evaluation

Improper Access Control Applied to Mirrored or Aliased 5.9 Memory Regions in AMD Secure Encrypted Vi…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-0480

Medium priority
Needs evaluation

Missing Authentication for Critical Function in AMD Secure 6.0 Encrypted Virtualization (SEV) firmwa…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-0454

Medium priority
Needs evaluation

An out-of-bounds write in the AMD Secure Encrypted 4.6 Virtualization (SEV) firmware could allow a m…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-0435

Medium priority
Needs evaluation

Operation on a resource after expiration or release in the AMD 6.0 Secure Encrypted Virtualization (…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Not affected Not affected Not affected
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CVE-2026-0004

Medium priority
Needs evaluation

A transient execution vulnerability in some AMD processors may 5.7 allow an attacker to infer data i…

1 affected package

amd64-microcode

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
amd64-microcode Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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