CVE-2024-40999
CSIRTS triage
- What
- Missing validation of completion descriptors in the ENA network driver can cause denial of service.
- Who is affected
- Systems using Amazon ENA network adapters in EC2 or on-premises deployments.
- Urgency
- Medium severity; not exploited but denial of service impact is moderate.
- Action
- Update to patched ENA driver version or apply kernel security patch.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2024-40999: net: ena: Add validation for completion descriptors consistencymsrc · 2026-08-06
External references
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[](https://www.csirts.com/cve/CVE-2024-40999)