Security advisory

{
  "id": "5289f43d99a280c105d08a99ccde78b6b6cc8e12a795bacb60286c8883ba48ae",
  "url": "https://osv.dev/vulnerability/CVE-2020-25464",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-25464",
    "summary": "Heap buffer overflow at moddable/xs/sources/xsDebug.c in Moddable SDK before before 20200903. The top stack frame is only partially initialized because the stack overflowed while creating the frame. This leads to a crash in the code sending the stack frame to the debugger.",
    "evidence": "osv:CVE-2020-25464",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-25464",
      "aliases": [
        "CVE-2020-25464"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/moddable-opensource/moddable",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5639abb24b6d725554969dc0be5822edb54a4a08"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:moddable:moddable:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "os200903"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "OS200831"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25464.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:53.128049804Z",
      "provider": "osv",
      "references": [
        "https://github.com/Moddable-OpenSource/moddable/issues/431"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-25464",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383997,
  "published_at": "2020-12-04T17:15:12.993+00:00"
}