{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0"
                  },
                  {
                    "last_affected": "07.36"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              },
              {
                "range": [
                  {
                    "fixed": "0da5b0b71e06e8c318a4e674c84caee12251a782"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              },
              {
                "range": [
                  {
                    "fixed": "c893b583d928fd17d756b39271b2eae71766e7f2"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "79deb000cc0b47ae49a80c92c78167c02d8a04d8"
            },
            {
              "fixed": "0da5b0b71e06e8c318a4e674c84caee12251a782"
            },
            {
              "fixed": "c893b583d928fd17d756b39271b2eae71766e7f2"
            }
          ],
          "repo": "https://github.com/vrpn/vrpn",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-129"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123200.json"
  },
  "details": "VRPN through 07.36 contains an out-of-bounds stack write vulnerability in vrpn_Endpoint::handle_sender_message() and handle_type_message() that allows unauthenticated remote peers to write outside a stack buffer via an unchecked length index. Attackers can connect, complete the version-cookie exchange, and send a SENDER_DESCRIPTION or TYPE_DESCRIPTION message with an out-of-range or negative index to crash the process.",
  "id": "CVE-2026-123200",
  "modified": "2026-11-05T21:16:04.518456417Z",
  "published": "2026-11-05T18:16:37.053Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123200.json"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vrpn/vrpn"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4482"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/vrpn/vrpn/blob/79deb000cc0b47ae49a80c92c78167c02d8a04d8/vrpn_Connection.C#L4554"
    },
    {
      "type": "FIX",
      "url": "https://github.com/vrpn/vrpn/commit/0da5b0b71e06e8c318a4e674c84caee12251a782"
    },
    {
      "type": "FIX",
      "url": "https://github.com/vrpn/vrpn/commit/c893b583d928fd17d756b39271b2eae71766e7f2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123200"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/vrpn-through-07.36-out-of-bounds-write-via-sender-description-type-description-length-index"
    }
  ],
  "schema_version": "1.9.2",
  "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": "VRPN through 07.36 Out-of-bounds Write via SENDER_DESCRIPTION/TYPE_DESCRIPTION length index"
}