Security advisory

{
  "id": "b13bcb82065dc73d679e9f57ac779ff7271f1dcd721c370e47c43a37ff813398",
  "url": "https://osv.dev/vulnerability/CVE-2026-19477",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-19477",
    "summary": "There is stack-based buffer overflow vulnerability recently discovered in MCC Universal Library for Linux (uldaq). This may result in information disclosure or arbitrary code execution. This vulnerability affects MCC Universal Library for Linux (uldaq) v1.2.1 and prior versions.",
    "evidence": "osv:CVE-2026-19477",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-19477",
      "aliases": [
        "CVE-2026-19477",
        "GHSA-9jr3-33mw-g6jc"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mccdaq/uldaq",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "c7b94531185ff098af166da2be1f3a4a648cfa96"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.2.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.2.1",
            "v1.2.0",
            "v1.1.2",
            "v1.1.1",
            "v1.1.0",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-19477.json"
          }
        }
      ],
      "modified": "2026-10-20T11:19:01.890529426Z",
      "provider": "osv",
      "references": [
        "https://www.ni.com/en/support/security/available-critical-and-security-updates-for-ni-software/2026/stack-based-buffer-overflow-vulnerability-linux-uldaq.html",
        "https://github.com/mccdaq/uldaq/security/advisories/GHSA-9jr3-33mw-g6jc"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2026-19477",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387166,
  "published_at": "2026-09-17T19:16:41.43+00:00"
}