AMD security advisory (AV26-800)
Serial Number: AV26-800 Date: August 11, 2026 As of August 10, 2026, AMD is affected by vulnerabilities in the following products: AMD EPYC Series Processors AMD EPYC Embedded Series Processors The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available. Extracting VM Secrets through Power Side Channels on AMD SEV-ES and SEV-SNP AMD Product Security
CSIRTS triage
- What
- Virtual machine secrets can be extracted through power side-channel attacks on AMD SEV-ES and SEV-SNP encrypted processors.
- Who is affected
- Organizations deploying AMD EPYC and EPYC Embedded Series processors with SEV-ES or SEV-SNP enabled.
- Urgency
- High urgency; power side-channel attacks on confidential computing features undermine the security guarantees of encrypted virtual machines.
- Action
- Review AMD security advisories and apply firmware or microcode updates as they become available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://cyber.gc.ca/en/alerts-advisories/amd-security-advisory-av26-800
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