Vulnerability Intelligence Report
CVE-2023-31355
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
No Active Exploit Signals
CVSS Base Score
6.0
MEDIUM
Exploitability:1.5
Impact Score:4.0
EPSS Probability:0.44%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-119 ↗CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | 3rd Gen AMD EPYC™ Processors | various < MilanPI 1.0.0.D (affected) |
| AMD | 4th Gen AMD EPYC™ Processors | various < GenoaPI 1.0.0.C (affected) |
| AMD | AMD EPYC™ Embedded 7003 | various < EmbMilanPI-SP3 1.0.0.9 (affected) |
| AMD | AMD EPYC™ Embedded 9003 | various < EmbGenoaPI-SP5 1.0.0.7 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.443%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2023-04-27T15:25:41 |
| Published | 2024-08-05T16:04:24 |
| Patch Date | 2024-08-05 |
| Last Updated | 2024-08-06T14:58:40 |
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