CVE-2023-31364
No known exploitation. EPSS puts it in the 14th percentile. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
What it is
From the CVE record
Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 14th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
4 events over 1 day, from the signal feeds we watch.
- Record updated
- Publishedweakness classified, att&ck mapped
Affected products
- AMD EPYC™ 7001 Series ProcessorsHardware Firmware
- AMD EPYC™ 7002 Series ProcessorsHardware Firmware
- AMD EPYC™ 7003 Series ProcessorsHardware Firmware
- AMD EPYC™ 8004 Series ProcessorsHardware Firmware
- AMD EPYC™ 9004 Series ProcessorsHardware Firmware
- AMD EPYC™ 9005 Series ProcessorsHardware Firmware
- AMD EPYC™ Embedded 3000 Series ProcessorsHardware Firmware
- AMD EPYC™ Embedded 7002 Series ProcessorsHardware Firmware
And 25 more affected products. See all after sign-in
Technical detail
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationhigh confidence
- Privilege EscalationT1068Exploitation for Privilege Escalationhigh confidence
Sources
References in the record
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