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Vulnerability record · CVE-2019-18960 · published 11 December 2019

CVE-2019-18960: Amazon firecracker classic buffer overflow vulnerability

Amazon · Firecracker

Firecracker vsock implementation buffer overflow in versions 0.18.0 and 0.19.0. This can result in potentially exploitable crashes.

9.8 CVSS 3.1 Critical EPSS 3.3% · top 12.1% CWE-120 · Classic buffer overflow
9.8CVSS 3.1 base score, v2 7.5
3.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Firecracker vsock implementation buffer overflow in versions 0.18.0 and 0.19.0. This can result in potentially exploitable crashes.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2019/12/10/1 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2022/09/11/2 Mailing ListThird Party Advisory
https://github.com/firecracker-microvm/firecracker/issues/1462 Third Party Advisory
https://github.com/firecracker-microvm/firecracker/releases Release NotesThird Party Advisory
https://github.com/firecracker-microvm/firecracker/releases/tag/v0.18.1 Release NotesThird Party Advisory
https://github.com/firecracker-microvm/firecracker/releases/tag/v0.19.1 Release NotesThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/12/10/1 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2022/09/11/2 Mailing ListThird Party Advisory
https://github.com/firecracker-microvm/firecracker/issues/1462 Third Party Advisory
https://github.com/firecracker-microvm/firecracker/releases Release NotesThird Party Advisory
https://github.com/firecracker-microvm/firecracker/releases/tag/v0.18.1 Release NotesThird Party Advisory
https://github.com/firecracker-microvm/firecracker/releases/tag/v0.19.1 Release NotesThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-18960), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.