Bug 2571340 (CVE-2025-54504)

Summary: CVE-2025-54504 linux-firmware: linux-firmware: Unauthorized write to trusted SEV-ES memory via insufficient access control
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in AMD Secure Encrypted Virtualization (SEV) firmware. Due to insufficient access control granularity, a local attacker with administrative privileges can write data to a trusted memory region reserved for AMD Secure Encrypted Virtualization-Encrypted State (SEV-ES). This issue compromises the integrity of protected virtual machine states.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-11-10 21:51:58 UTC
Insufficient Granularity of Access Control in AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with administrative privileges attacker to write to a trusted region used by AMD Secure Encrypted Virtualization-Encrypted State (SEV-ES), potentially resulting in loss of integrity.