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CVE-2026-122192

7.1 high

High (7.1).

Improper handling of a failed memory remap in Firecracker versions 0.23.0 through 1.16.1 might allow a guest user with root privileges to read or modify Firecracker VMM process memory via balloon or virtio-mem discard requests on microVMs restored from a snapshot with the File memory backend, if the host fails to create the replacement mapping. To remediate this issue, users should upgrade to Firecracker 1.16.2 or 1.17.0 and later.

Severity

CVSS 4.0

7.1 high
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5 high
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CWEs
CWE-390 Detection of Error Condition Without Action
CWE-825 Expired Pointer Dereference
OWASP Top 10
A10:2025 Mishandling of Exceptional Conditions
Published
Record from
the NVD, synced

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Versions

From the CNA's record in the CVE List.

ProductAffected
AWS firecrackerfrom 0.23.0 before 1.16.2

References

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