Severity by source
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionCVE.org
Improper enforcement of the LFENCE serialization property may allow an attacker to bypass speculation barriers and potentially disclose sensitive information, potentially resulting in loss of confidentiality.
AnalysisAI
Improper enforcement of the LFENCE serialization property may allow an attacker to bypass speculation barriers and potentially disclose sensitive information, potentially resulting in loss of. Rated medium severity (CVSS 5.7). No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-693. Improper enforcement of the LFENCE serialization property may allow an attacker to bypass speculation barriers and potentially disclose sensitive information, potentially resulting in loss of confidentiality. Affected products include: Amd Amd Epyc™ Series 9004 Processors, Amd Amd Epyc™Series 4004 Processors, Amd Amd Epyc™ 8004 Series Processors, Amd Amd Instinct™ Mi300A Series Processors, Amd Amd Ryzen™ Z1 Series Processors.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Privilege escalation into the AMD Secure Processor affects AMD EPYC 8004/9004/9005 and EPYC Embedded 8004/9004/9005 seri
Local privilege escalation in the AMD Platform Configuration Blob (APCB) SMM driver, shipped in AGESA firmware across ne
Missing hardware lock bit protection on NBIO registers in AMD EPYC server processors (7003/8004/9004/9005 series, includ
Missing lock check in the AMD Platform Security Processor (PSP) across multiple EPYC server CPU generations enables a lo
Improper access control in the IOMMU register interface on AMD EPYC server processors allows a high-privileged local att
Same weakness CWE-693 – Protection Mechanism Failure
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today
EUVD-2024-55576