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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-2025

Kata Containers before 1.11.0 on Cloud Hypervisor persists guest filesystem changes to the underlying image file on the host. A malicious guest can overwrite the image file to gain control of all subsequent guest VMs. Since Kata Containers uses the same VM image file with all VMMs, this issue may also affect QEMU and Firecracker based guests.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-2025
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:56 UTC · Revision 1

Source evidence

CVE-2020-2025

core-osv · Original source

Published 19 May 2020, 21:15 UTC

Kata Containers before 1.11.0 on Cloud Hypervisor persists guest filesystem changes to the underlying image file on the host. A malicious guest can overwrite the image file to gain control of all subsequent guest VMs. Since Kata Containers uses the same VM image file with all VMMs, this issue may also affect QEMU and Firecracker based guests.

osv:CVE-2020-2025
Complete source record
{
  "id": "e5004488c8fe33821550b639129ff88d0b2d498fa2894200bd5ce6f536effce4",
  "url": "https://osv.dev/vulnerability/CVE-2020-2025",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-2025",
    "summary": "Kata Containers before 1.11.0 on Cloud Hypervisor persists guest filesystem changes to the underlying image file on the host. A malicious guest can overwrite the image file to gain control of all subsequent guest VMs. Since Kata Containers uses the same VM image file with all VMMs, this issue may also affect QEMU and Firecracker based guests.",
    "evidence": "osv:CVE-2020-2025",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-2025",
      "aliases": [
        "CVE-2020-2025"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/kata-containers/runtime",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "23e554b316aa994c6f48c9b1bd84060629fd6361"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:katacontainers:runtime:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.11.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.11.0-rc0",
            "1.11.0-alpha1",
            "1.11.0-alpha0",
            "1.10.0-rc0",
            "20191207",
            "1.10.0-alpha1",
            "1.10.0-alpha0",
            "1.9.0-rc0",
            "1.9.0-alpha2",
            "1.9.0-alpha1",
            "1.9.0-alpha0",
            "1.8.0-rc0",
            "1.8.0-alpha2",
            "1.8.0-alpha1",
            "1.8.0-alpha0",
            "1.7.0",
            "1.7.0-rc1",
            "1.7.0-alpha1",
            "1.7.0-alpha0",
            "1.6.0-rc2",
            "1.6.0-rc1",
            "1.5.0",
            "1.5.0-rc2",
            "1.4.0",
            "1.5.0-rc1",
            "1.3.0",
            "1.3.0-rc1",
            "1.3.0-rc0",
            "1.2.0",
            "1.1.0",
            "1.0.0",
            "0.3.0",
            "0.2.0",
            "0.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-2025.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:08.148553894Z",
      "provider": "osv",
      "references": [
        "https://github.com/kata-containers/runtime/pull/2487"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-2025",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383372,
  "published_at": "2020-05-19T21:15:10.163+00:00"
}