Security readout for executives and security teams
Plain-English summary
Kata Containers could let a container touch the guest virtual machine's root filesystem device. A malicious container with local access could alter guest behavior and impersonate the kata-agent. The published severity is low, but it matters more in multi-tenant or untrusted-container environments where Kata is used as an isolation boundary.
Executive priority
Prioritize as routine but time-bounded remediation. Escalate if Kata protects untrusted customer, tenant, CI, or sandbox workloads, because the vulnerability weakens the isolation value those deployments depend on.
Technical view
The issue is an insufficient privilege restriction: containers were not blocked from the guest root filesystem device. A malicious container could gain code execution in the guest and masquerade as kata-agent. Affected versions are Kata Containers 1.11 before 1.11.1, 1.10 before 1.10.5, and 1.9 or earlier. CVSS 3.1 is 3.8, local, low privilege, scope changed, integrity impact only.
Likely exposure
Exposure is limited to environments running affected Kata Containers versions, especially platforms allowing users to run untrusted containers. The bundle does not indicate impact to non-Kata runtimes or host-level escape. Risk is lower where only trusted workloads run or affected versions are absent.
Exploitation context
The source bundle says malicious containers can exploit this after obtaining local, low-privileged container execution. CISA KEV status is false, and no cited source in the bundle states active exploitation in the wild. No public exploit status should be inferred from the provided evidence.
Researcher notes
Evidence is strongest for affected version ranges, root filesystem device exposure, guest code execution, and kata-agent impersonation. The bundle does not provide exploit telemetry, detailed attack prerequisites beyond local low privilege, or proof of host escape. Avoid expanding scope beyond the guest without additional vendor evidence.
Mitigation direction
- Upgrade Kata Containers 1.11 deployments to 1.11.1 or later.
- Upgrade Kata Containers 1.10 deployments to 1.10.5 or later.
- Retire or upgrade Kata Containers 1.9 and earlier deployments.
- Limit untrusted container workloads on affected Kata versions until upgraded.
- Check Kata Containers release guidance for any environment-specific instructions.
Validation and detection
- Inventory clusters and hosts for Kata Containers runtime versions.
- Compare discovered versions with 1.11 before 1.11.1, 1.10 before 1.10.5, and 1.9 or earlier.
- Confirm upgraded nodes report fixed Kata Containers versions.
- Identify services relying on Kata for isolation of untrusted containers.
- Review change records to ensure affected runtime packages were actually replaced.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-250: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-2023 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 3.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N21.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.8LowVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/kata-containers/runtime/pull/2487CVE reference · x_refsource_MISC
- https://github.com/kata-containers/runtime/pull/2477CVE reference · x_refsource_MISC
- https://github.com/kata-containers/runtime/issues/2488CVE reference · x_refsource_MISC
- https://github.com/kata-containers/agent/issues/791CVE reference · x_refsource_MISC
- https://github.com/kata-containers/agent/pull/792CVE reference · x_refsource_MISC
- https://github.com/kata-containers/runtime/releases/tag/1.11.1CVE reference · x_refsource_MISC
- https://github.com/kata-containers/runtime/releases/tag/1.10.5CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Execution with Unnecessary Privileges
Execution with Unnecessary Privileges represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.