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CVE-2026-21019

Full vulnerability record from the local CVENow database.

Description

Improper input validation in FacAtFunction in Galaxy Watch prior to SMR May-2026 Release 1 allows local attacker to execute arbitrary code with system privilege.

Severity
HIGH
CVSS score
8.6 (v4.0)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-05-13 06:16:13.403000
Last modified
2026-10-26 17:10:03.270000
View original CVE JSON
{
  "id": "CVE-2026-21019",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-13T06:16:13.403",
  "lastModified": "2026-10-26T17:10:03.270",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper input validation in FacAtFunction in Galaxy Watch prior to SMR May-2026 Release 1 allows local attacker to execute arbitrary code with system privilege."
    },
    {
      "lang": "es",
      "value": "Validación de entrada incorrecta en FacAtFunction en Galaxy Watch anterior a SMR May-2026 Release 1 permite a un atacante local ejecutar código arbitrario con privilegios de sistema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Samsung Mobile",
          "product": "Samsung Mobile Devices",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "SMR May-2026 Release in Android Watch 14, 16",
              "lessThan": "*",
              "versionType": "semver",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-13T00:00:00+00:00",
          "id": "CVE-2026-21019",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "references": [
    {
      "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=05",
      "source": "[email protected]"
    }
  ]
}