Unrated severityOSV Advisory· Published Jan 14, 2026· Updated Feb 26, 2026
FreeRDP has a heap-buffer-overflow in drive_process_irp_read
CVE-2026-22854
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap-buffer-overflow occurs in drive read when a server-controlled read length is used to read file data into an IRP output stream buffer without a hard upper bound, allowing an oversized read to overwrite heap memory. This vulnerability is fixed in 3.20.1.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/FreeRDP/FreeRDP/releases/tag/3.20.1mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-47vj-g3c3-3rmfmitrex_refsource_CONFIRM
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