VulnerabilityPublished 26 Oct 2026

GCP-2023-44

Source GCP Compute Engine Security

Mentioned vulnerabilities

Severity

Medium

Rated Medium by Threat Radar's AI analysis

Data as of 26 Oct 2026, 22:14 UTC

cloud

What to do

AI-suggested

Google has already applied fixes to the affected server fleet, including Google Cloud and Compute Engine. No customer action is required at this time.

Description

Multiple vulnerabilities affecting AMD EPYC server CPUs based on Zen 2 (Rome), Zen 3 (Milan), and Zen 4 (Genoa) core generations were disclosed by AMD in November 2023. Google has applied fixes to its infrastructure, including Google Cloud and Compute Engine, to protect customers. No evidence of exploitation has been reported. Customers using Google Cloud services do not need to take any action as mitigations are already in place.

Impact

The vulnerabilities affect AMD EPYC server CPUs across multiple Zen core generations and could potentially impact the security boundaries or data integrity of affected systems. However, no exploitation has been observed or reported. The impact is mitigated by the fixes applied by Google to its cloud infrastructure, preventing customer exposure.

Summary

AMD disclosed several vulnerabilities impacting EPYC server CPUs leveraging Zen 2, Zen 3, and Zen 4 microarchitectures. These vulnerabilities, collectively addressed by patches, include CVE-2022-23820, CVE-2021-46774, CVE-2023-20533, CVE-2023-20519, CVE-2023-20592, CVE-2023-20566, CVE-2023-20521, CVE-2021-46766, CVE-2022-23830, CVE-2023-20526, and CVE-2021-26345. Google has applied fixes to affected assets, including Google Cloud infrastructure and Compute Engine, ensuring customers are protected. There is no reported exploitation in the wild at this time.

References

docs.cloud.google.com/compute/docs/security-bulletins (opens in a new tab)

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AI analysisMachine-generated, updated 26 Oct 2026, 22:14 UTC

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