CVE-2026-5747 - Out-of-bounds Write in Firecracker virtio-pci Transport

AWS Firecracker ยท 2026-10-19

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Technical Details

Affected Versions 1.13.0, 1.14.3, 1.15.0
Regions all
CVE IDs CVE-2026-5747
Migration Required Yes
Cost Impact Neutral
IaC Impact High

What This Means

For DevOps Teams

Update Firecracker to version 1.14.4 or 1.15.1 to address the out-of-bounds write vulnerability (CVE-2026-5747) and ensure the security of your deployments.

For Platform Teams

Deploy the latest Firecracker versions to incorporate critical security fixes and maintain the stability and security of your virtualization infrastructure.

For Executives

Evaluate the security implications of CVE-2026-5747 and ensure timely patching to mitigate potential risks to the organization's infrastructure and data integrity.

Source

View original AWS announcement โ†’

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