OpenEXR ScanLineProcess::run_fill NULL Pointer Write In "reduceMemory" Mode

{
  "id": "8bdface6fc3031600ccff7953747cb9215e6ff9884fb1ad430b521f6db3aa0a2",
  "url": "https://osv.dev/vulnerability/CVE-2025-48073",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OpenEXR ScanLineProcess::run_fill NULL Pointer Write In \"reduceMemory\" Mode",
    "summary": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In version 3.3.2, when reading a deep scanline image with a large sample count in reduceMemory mode, it is possible to crash a target application with a NULL pointer dereference in a write operation. This is fixed in version 3.3.3.",
    "evidence": "osv:CVE-2025-48073",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-48073",
      "aliases": [
        "CVE-2025-48073",
        "GHSA-qhpm-86v7-phmm",
        "PYSEC-2026-1748"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/academysoftwarefoundation/openexr",
              "type": "GIT",
              "events": [
                {
                  "introduced": "55d1a1404cec5b4b187009d9f7fe55a5622ac4e5"
                },
                {
                  "fixed": "da760aa4b6bee4b9d74b8c6a151221b035fc47b7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3.3.2"
                      },
                      {
                        "fixed": "3.3.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:openexr:openexr:3.3.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.3.2"
                      },
                      {
                        "last_affected": "3.3.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.3.2",
            "v3.3.3-rc",
            "v3.3.2-rc4",
            "v3.3.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-48073.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.989154996Z",
      "provider": "osv",
      "references": [
        "https://github.com/ShielderSec/poc/tree/main/CVE-2025-48073",
        "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-qhpm-86v7-phmm",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48073.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-48073"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-476"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48073.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-48073",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495898,
  "published_at": "2025-07-31T20:25:51.545+00:00"
}