CVE-2026-49346

{
  "id": "CVE-2026-49346",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-19T21:17:01.847",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue."
    },
    {
      "lang": "es",
      "value": "libde265 es una implementación de código abierto del códec de video h.265. Antes de la versión 1.1.0, un flujo de bits H.265 manipulado con grandes dimensiones SPS y una profundidad de bits de 16 bits causa un desbordamiento de entero con signo en ’de265_image_get_buffer()’ (’libde265/image.cc:128’). El desbordamiento ajusta el tamaño de asignación del plano a un valor pequeño (~1 KB), pero la llamada subsiguiente a ’fill_image()’ calcula el tamaño real usando ’size_t’, escribiendo ~4 GB en el búfer de pila de tamaño insuficiente. La versión 1.1.0 corrige el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "strukturag",
          "product": "libde265",
          "versions": [
            {
              "version": "< 1.1.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-22T14:04:49.752955Z",
          "id": "CVE-2026-49346",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:struktur:libde265:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.1.0",
              "matchCriteriaId": "B8290F95-BF35-4C0A-A314-D8B0CBB5760E"
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  "references": [
    {
      "url": "https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Vendor Advisory"
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    {
      "url": "https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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}