An issue was discovered in GNU LibreDWG through 0.9.3. There is a NULL pointer dereference in the function dwgencodeLWPOLYLINE in dwg.spec.
{
"cpe": "cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "0.9.3"
}
],
"source": [
"CPE_RANGE",
"REFERENCES"
]
}"2026-07-08T19:50:33Z"
[
{
"signature_type": "Line",
"deprecated": false,
"digest": {
"threshold": 0.9,
"line_hashes": [
"80747704894915520246512868136121676260",
"231873989768695155421010471171394967963",
"69969983241233308991479822776630841974",
"23214769376401507993246118675454567162"
]
},
"signature_version": "v1",
"source": "https://github.com/libredwg/libredwg/commit/d7913b893bfa98fab27f05825dc4cab2d3a20c83",
"id": "CVE-2019-20909-da41e4d8",
"target": {
"file": "src/encode.c"
}
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20909.json"