{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2024-01-05"
              }
            ]
          }
        ]
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1f55d2e12f62cfdfbf9da6968fde2f928982670b"
            }
          ],
          "repo": "https://github.com/chromiumembedded/cef",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1f55d2e12f62cfdfbf9da6968fde2f928982670b"
            }
          ],
          "repo": "https://github.com/chromiumembedded/cef",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-3h3j-38xq-v7hh"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21640.json"
  },
  "details": "Chromium Embedded Framework (CEF) is a simple framework for embedding Chromium-based browsers in other applications.`CefVideoConsumerOSR::OnFrameCaptured` does not check `pixel_format` properly, which leads to out-of-bounds read out of the sandbox. This vulnerability was patched in commit 1f55d2e.\n\n",
  "id": "CVE-2024-21640",
  "modified": "2026-04-01T23:09:56.531678013Z",
  "published": "2024-01-13T07:40:10.324Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21640.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/chromiumembedded/cef/security/advisories/GHSA-3h3j-38xq-v7hh"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21640"
    },
    {
      "type": "FIX",
      "url": "https://github.com/chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OOB Access in CefVideoConsumerOSR::OnFrameCaptured"
}