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GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow

Type: advisorySources: OSV

A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-9500
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 19:33 UTC · Revision 1

Source evidence

GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow

core-osv · Original source

Published 25 May 2026, 20:15 UTC

A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

osv:CVE-2026-9500
Complete source record
{
  "id": "05a426fd93f04d39a877bfe372d342c408ee35fd0056e2ff18a204cd102e3821",
  "url": "https://osv.dev/vulnerability/CVE-2026-9500",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow",
    "summary": "A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2026-9500",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-9500",
      "aliases": [
        "CVE-2026-9500"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
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                    "source": "DESCRIPTION"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-9500.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.544026757Z",
      "provider": "osv",
      "references": [
        "https://www.gnu.org/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9500.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-9500",
        "https://vuldb.com/submit/814248",
        "https://vuldb.com/vuln/365482",
        "https://github.com/LibreDWG/libredwg/issues/1241",
        "https://vuldb.com/vuln/365482/cti",
        "https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119",
          "CWE-122"
        ],
        "cna_assigner": "VulDB",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.1"
                  },
                  {
                    "last_affected": "0.1"
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                  {
                    "introduced": "0.2"
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                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/9xxx/CVE-2026-9500.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-9500",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 506221,
  "published_at": "2026-05-25T20:15:11.726+00:00"
}