{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "1.9.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "50f607ee610bf34e03540e6c04c5b102a49b2ed5"
            }
          ],
          "repo": "https://github.com/rdesktop/rdesktop",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112279.json"
  },
  "details": "rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_bmpcache2() in orders.c that allows malicious RDP servers to crash clients via crafted revision-2 bitmap cache orders. Attackers can send an uncompressed order with large width/height or an underflowing mode nibble and short payload, causing memcpy() reads past the receive buffer and denial of service.",
  "id": "CVE-2026-112279",
  "modified": "2026-10-21T02:30:57.854542563Z",
  "published": "2026-10-19T13:55:24.937Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112279.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rdesktop/rdesktop"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/rdesktop/rdesktop/blob/v1.9.0/orders.c"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rdesktop/rdesktop/issues/436"
    },
    {
      "type": "FIX",
      "url": "https://github.com/rdesktop/rdesktop/pull/437"
    },
    {
      "type": "ADVISORY",
      "url": "https://hackmd.io/@haindpwn/rdesktop-bitmap-decompress-oob-read"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-112279"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/rdesktop-through-1.9.0-heap-out-of-bounds-read-via-process-bmpcache2"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_bmpcache2"
}