{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "547da54b4ee58eed47163fbd47edb4639e3d88de"
            }
          ],
          "repo": "https://github.com/rustdesk/hbb_common",
          "type": "GIT"
        },
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.4.7"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0c86d4616298f09435f6236599b300964aa61460"
            },
            {
              "fixed": "518296f2570d107ad416f29ade5fcce3177f4115"
            }
          ],
          "repo": "https://github.com/rustdesk/rustdesk",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73108.json"
  },
  "details": "RustDesk versions before 1.4.7 contain an uncontrolled speculative memory allocation vulnerability in BytesCodec. Before authentication, the decoder trusts the payload length encoded in a four-byte frame header and reserves that amount before receiving the payload. A crafted header can request up to 1,073,741,823 bytes of capacity, allowing unauthenticated attackers to use concurrent TCP connections to cause memory exhaustion and denial of service. The fix caps header-triggered speculative preallocation at 256 KiB.",
  "id": "CVE-2026-73108",
  "modified": "2026-08-30T03:30:31.482033481Z",
  "published": "2026-08-26T13:00:29.283Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73108.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/rustdesk/rustdesk/releases/tag/1.4.7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73108"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/rustdesk-uncontrolled-memory-allocation-dos-via-bytescodec"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rustdesk/hbb_common/commit/547da54b4ee58eed47163fbd47edb4639e3d88de"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rustdesk/rustdesk/commit/518296f2570d107ad416f29ade5fcce3177f4115"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rustdesk/rustdesk"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "RustDesk \u003c 1.4.7 Uncontrolled Memory Allocation DoS via BytesCodec"
}