CVE-2025-54957

{
  "id": "CVE-2025-54957",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-20T15:15:33.430",
  "lastModified": "2026-11-05T22:10:00.203",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Dolby UDC 4.5 through 4.13. A crash of the DD+ decoder process can occur when a malformed DD+ bitstream is processed. When Evolution data is processed by evo_priv.c from the DD+ bitstream, the decoder writes that data into a buffer. The length calculation for a write can overflow due to an integer wraparound. This can lead to the allocated buffer being too small, and the out-of-bounds check of the subsequent write to be ineffective, leading to an out-of-bounds write."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en Dolby UDC 4.5 hasta 4.13. Puede ocurrir un fallo del proceso del decodificador DD+ cuando se procesa un flujo de bits DD+ malformado. Cuando los datos de Evolution son procesados por evo_priv.c desde el flujo de bits DD+, el decodificador escribe esos datos en un búfer. El cálculo de la longitud para una escritura puede desbordarse debido a un ajuste de enteros. Esto puede llevar a que el búfer asignado sea demasiado pequeño, y a que la comprobación de límites de la escritura subsiguiente sea ineficaz, lo que resulta en una escritura fuera de límites."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-01-16T04:55:56.918155Z",
          "id": "CVE-2025-54957",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://professional.dolby.com/siteassets/pdfs/dolby-security-advisory-CVE-2025-54957-Oct-14-25.pdf",
      "source": "[email protected]"
    },
    {
      "url": "https://project-zero.issues.chromium.org/issues/428075495",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    },
    {
      "url": "https://projectzero.google/2026/01/pixel-0-click-part-1.html",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}