CVE-2020-2023
Kata Containers - Containers have access to the guest root filesystem device
- Published
- Jun 10, 2020
- Updated
- Sep 17, 2024
- Assigning CNA
- palo_alto
- Evidence observed
- Aug 4, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:LLow · next 30 days
- Percentile
- 64.7%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-agent. This issue affects Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; and Kata Containers 1.9 and earlier versions.
Sources
1Proof-of-concept exploit for Kata Containers container escape (CVE-2020-2023) using mknod to modify guest filesystem and overwrite system binaries for host access.
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