FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive tiles because the tile->current buffer is allocated without zeroing. A malicious RDP server can send a crafted WBT_TILE_FIRST then WBT_TILE_UPGRADE sequence to paint heap bytes onscreen or abort the client process.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-908"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109242.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "3.0.0"
},
{
"introduced": "3.6.0"
},
{
"fixed": "3.32.0"
}
],
"source": "AFFECTED_FIELD"
}