CVE-2024-36315

Speculative Execution Bypass via Improper LFENCE Enforcement Leading to Potential Data Disclosure

Published May 13, 2026 CVSS 4.0 · 5.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Amd
Amd epyc 4004 Series Processors
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc Embedded 8004 Series Processors
Amd epyc Embedded 9004 Series Processors
Amd instinct Mi300a Series Processors
Amd ryzen 7000 Series Desktop Processors
Amd ryzen 7040 Series Mobile Processors With Radeon Graphics
Amd ryzen 7045 Series Mobile Processors With Radeon Graphics
Amd ryzen 8000 Series Desktop Processors
Amd ryzen 9000 Series Desktop Processors
Amd ryzen Embedded 7000 Series Processors
Amd ryzen Embedded 8000 Series Processors
Amd ryzen Z1 Series Processors
Vendors & Products Amd
Amd epyc 4004 Series Processors
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc Embedded 8004 Series Processors
Amd epyc Embedded 9004 Series Processors
Amd instinct Mi300a Series Processors
Amd ryzen 7000 Series Desktop Processors
Amd ryzen 7040 Series Mobile Processors With Radeon Graphics
Amd ryzen 7045 Series Mobile Processors With Radeon Graphics
Amd ryzen 8000 Series Desktop Processors
Amd ryzen 9000 Series Desktop Processors
Amd ryzen Embedded 7000 Series Processors
Amd ryzen Embedded 8000 Series Processors
Amd ryzen Z1 Series Processors
Type Values Removed Values Added
Title Speculative Execution Bypass via Improper LFENCE Enforcement Leading to Potential Data Disclosure
Type Values Removed Values Added
Description 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.
Weaknesses CWE-693
References
Metrics cvssV4_0

{'score': 5.7, 'vector': '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'}