CVE-2025-9408

{
  "id": "CVE-2025-9408",
  "sourceIdentifier": "[email protected]",
  "published": "2025-11-11T16:15:40.917",
  "lastModified": "2026-10-18T21:10:00.120",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "System call entry on Cortex M (and possibly R and A, but I think not) has a race which allows very practical privilege escalation for malicious userspace processes."
    },
    {
      "lang": "es",
      "value": "La entrada de llamada al sistema en Cortex M (y posiblemente R y A, pero creo que no) tiene una condición de carrera que permite una escalada de privilegios muy práctica para procesos maliciosos del espacio de usuario."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "zephyrproject-rtos",
          "product": "Zephyr",
          "defaultStatus": "unaffected",
          "packageName": "Zephyr",
          "repo": "https://github.com/zephyrproject-rtos/zephyr",
          "versions": [
            {
              "version": "*",
              "lessThan": "3.7.2",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "4.0.0",
              "lessThan": "4.2.2",
              "versionType": "git",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.4,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-11-12T14:54:05.961433Z",
          "id": "CVE-2025-9408",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-270"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3r6j-5mp3-75wr",
      "source": "[email protected]"
    }
  ]
}