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CVE-2025-31716

Status: DeferredMedium (5.1)—

In bootloader, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no additional execution privileges needed.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

References

Raw JSON (NVD)

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{
  "id": "CVE-2025-31716",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-31716",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-01T13:30:19.380513Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@unisoc.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.1,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 2.5
      }
    ]
  },
  "affected": [
    {
      "source": "security@unisoc.com",
      "affectedData": [
        {
          "vendor": "Unisoc (Shanghai) Technologies Co., Ltd.",
          "product": "SC7731E/SC9832E/SC9863A/T310/T606/T612/T616/T610/T618/T750/T765/T760/T770/T820/S8000",
          "versions": [
            {
              "status": "affected",
              "version": "Android13/Android14/Android15"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-08-01T06:15:28.657",
  "references": [
    {
      "url": "https://www.unisoc.com/en_us/secy/announcementDetail/1951157990262374401",
      "source": "security@unisoc.com"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In bootloader, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no additional execution privileges needed."
    },
    {
      "lang": "es",
      "value": "En bootloader, existe una posible escritura fuera de los límites debido a una comprobación de los límites incompleta. Esto podría provocar una denegación de servicio local sin necesidad de privilegios de ejecución adicionales."
    }
  ],
  "lastModified": "2026-06-17T09:10:49.413",
  "sourceIdentifier": "security@unisoc.com"
}