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CVE-2026-5747

HIGH

7.5

Descripcion

An out-of-bounds write issue in the virtio PCI transport in Amazon Firecracker 1.13.0 through 1.14.3 and 1.15.0 on x86_64 and aarch64 might allow a local guest user with root privileges to crash the Firecracker VMM process or potentially execute arbitrary code on the host via modification of virtio queue configuration registers after device activation. Achieving code execution on the host requires additional preconditions, such as the use of a custom guest kernel or specific snapshot configurations. To remediate this, users should upgrade to Firecracker 1.14.4 or 1.15.1 and later.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Vector de ataqueLOCAL

ComplejidadHIGH

Privilegios requeridosHIGH

Interaccion usuarioNONE

Publicado4/8/2026

Ultima modificacion4/8/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-369CWE-787

Referencias

https://aws.amazon.com/security/security-bulletins/2026-015-aws/(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/firecracker-microvm/firecracker/releases/tag/v1.14.4(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/firecracker-microvm/firecracker/releases/tag/v1.15.1(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/firecracker-microvm/firecracker/security/advisories/GHSA-776c-mpj7-jm3r(ff89ba41-3aa1-4d27-914a-91399e9639e5)

Correlaciones IOC

Sin correlaciones registradas

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